{"title":"Hayward Perflex Filters","description":"","products":[{"product_id":"hayward-perflex-extended-cycle-d-e-pool-filter-6-lb-w3ec40ac","title":"Hayward Perflex Extended-Cycle D.E. Pool Filter 6 lb","description":"\u003c!-- more --\u003e\n\u003cstyle\u003e\n  .product-description {\n    color: inherit;\n    line-height: 1.75;\n    max-width: 860px;\n  }\n  .product-description h2 {\n    font-size: 1.2rem;\n    font-weight: 700;\n    margin: 2rem 0 0.6rem;\n    border-bottom: 2px solid #cce0ff;\n    padding-bottom: 0.3rem;\n  }\n  .product-description h3 {\n    font-size: 1rem;\n    font-weight: 700;\n    margin: 1.5rem 0 0.4rem;\n  }\n  .product-description p { margin: 0 0 1rem; }\n  .product-description ul { margin: 0 0 1rem 1.4rem; padding: 0; }\n  .product-description ul li { margin-bottom: 0.4rem; }\n  .product-description .spec-list {\n    margin: 1rem 0 1.5rem;\n    font-size: 0.95rem;\n    border: 1px solid #c4d9f0;\n    border-radius: 4px;\n    overflow: hidden;\n  }\n  .product-description .spec-row {\n    display: flex;\n    flex-wrap: wrap;\n    border-bottom: 1px solid #c4d9f0;\n  }\n  .product-description .spec-row:last-child { border-bottom: none; }\n  .product-description .spec-key {\n    flex: 0 0 38%;\n    background-color: #e8f1fb;\n    font-weight: 700;\n    padding: 0.5rem 0.75rem;\n    box-sizing: border-box;\n  }\n  .product-description .spec-val {\n    flex: 1 1 62%;\n    padding: 0.5rem 0.75rem;\n    box-sizing: border-box;\n  }\n  .product-description .spec-row:nth-child(even) .spec-val { background-color: #f5f9ff; }\n  .product-description .spec-row:nth-child(even) .spec-key { background-color: #edf4fc; }\n  @media (max-width: 540px) {\n    .product-description .spec-key,\n    .product-description .spec-val { flex: 0 0 100%; }\n    .product-description .spec-key { padding-bottom: 0.2rem; }\n    .product-description .spec-val { padding-top: 0.2rem; }\n  }\n  .product-description .note {\n    background-color: #edf5fc;\n    border-left: 4px solid #0066cc;\n    padding: 0.75rem 1rem;\n    font-size: 0.93rem;\n    margin: 1rem 0;\n    border-radius: 0 4px 4px 0;\n  }\n  .product-description .doc-links {\n    background-color: #f0f6ff;\n    border-left: 4px solid #0066cc;\n    padding: 0.75rem 1rem;\n    margin: 1.5rem 0;\n    border-radius: 0 4px 4px 0;\n  }\n  .product-description .doc-links h2 {\n    border-bottom: none;\n    margin: 0 0 0.4rem;\n    font-size: 1rem;\n    padding-bottom: 0;\n  }\n  .product-description .doc-links ul { margin: 0 0 0 1.2rem; }\n\u003c\/style\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Product\" itemscope=\"\" class=\"product-description\"\u003e\n\u003cmeta content=\"Hayward PerFlex Extended-Cycle D.E. Pool Filter 27 Sq Ft W3EC65A\" itemprop=\"name\"\u003e \u003cmeta content=\"Hayward\" itemprop=\"brand\"\u003e \u003cmeta content=\"W3EC65A\" itemprop=\"sku\"\u003e \u003cmeta content=\"Pool Filter\" itemprop=\"category\"\u003e\n\u003cp itemprop=\"description\"\u003eThe Hayward Perflex W3EC65A is a 27 sq ft extended-cycle D.E. pool filter. Patented Flex-Tube design cleans without backwashing. 6 lbs D.E. capacity, 67 GPM max flow. Self-venting, integral check valve, easy-access clamp assembly. Professional installation required for warranty validation. 1 year warranty.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSKU: W3EC65A\u003c\/li\u003e\n\u003cli\u003e1 year warranty\u003c\/li\u003e\n\u003cli\u003e27 sq ft extended-cycle D.E. pool filter\u003c\/li\u003e\n\u003cli\u003ePatented Flex-Tube design cleans without backwashing; no backwash valve or drain line required\u003c\/li\u003e\n\u003cli\u003e6 lbs D.E. capacity; 67 GPM max flow rate\u003c\/li\u003e\n\u003cli\u003eRemoves particles as small as 2 microns the first time through\u003c\/li\u003e\n\u003cli\u003eFlex-Tubes instantly clean themselves via the bump handle; D.E. is reused rather than discharged\u003c\/li\u003e\n\u003cli\u003eSelf-venting design automatically expels air from the system\u003c\/li\u003e\n\u003cli\u003eIntegral check valve prevents system backflow whenever pump is off\u003c\/li\u003e\n\u003cli\u003eCombination pressure gauge and threaded inspection\/service port\u003c\/li\u003e\n\u003cli\u003eEasy-access clamp assembly for service\u003c\/li\u003e\n\u003cli\u003eHeavy-duty glass-filled PPL tank; corrosion-free\u003c\/li\u003e\n\u003cli\u003eFor in-ground and above ground pools\u003c\/li\u003e\n\u003cli\u003eReplaces EC65A (direct replacement)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHayward PerFlex W3EC65A Extended-Cycle D.E. Pool Filter: No Backwash, No Grid Teardown\u003c\/h2\u003e\n\u003cp\u003eThe PerFlex W3EC65A delivers 2-micron D.E. filtration without the maintenance overhead of a conventional grid-based D.E. filter. Instead of rigid grid panels that need backwashing, fresh D.E. after every cleaning, and periodic acid washing, the PerFlex uses patented Flex-Tubes that clean themselves via a bump handle. When pressure rises, you stop the pump, stroke the bump handle, and restart. The Flex-Tubes compress and release, shedding the spent D.E. cake, which then redistributes and recoats the tubes. No valve, no drain line, no fresh D.E. needed after each cleaning. A single 6 lb charge lasts significantly longer than in a conventional D.E. filter because the powder is reused rather than flushed away.\u003c\/p\u003e\n\u003ch2\u003eHow the PerFlex Bump-to-Clean Cycle Works\u003c\/h2\u003e\n\u003cp\u003eWhen operating pressure rises 10 to 12 PSI above the clean baseline: stop the pump, push the bump handle down slowly then up briskly, repeat 8 times. The Flex-Tubes flex and compress, dislodging the loaded D.E. cake. Dirty and clean D.E. mix together and recoat the tube surfaces. Restart the pump. In most cases pressure returns near baseline and the existing D.E. charge continues filtering without any addition of fresh powder. This cycle can be repeated many times before a full sump drain is needed, and a full D.E. recharge is only required when bumping and draining no longer restore acceptable pressure.\u003c\/p\u003e\n\u003ch2\u003eHayward PerFlex W3EC65A D.E. Filter Specifications\u003c\/h2\u003e\n\u003cdiv class=\"spec-list\"\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eSKU \/ Model\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eW3EC65A (replaces EC65A)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eFilter Type\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eExtended-cycle D.E. (Flex-Tube)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eFilter Area\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e27 sq ft\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eD.E. Capacity\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e6 lbs pool-grade D.E. powder\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eMax Flow Rate\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e67 GPM\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eFiltration Range\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e2 microns\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eBackwash Valve Required\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eNo\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eCleaning Method\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eBump handle; no backwashing\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003ePort Size\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e1.5\" NPT inlet and outlet\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eInternal Element\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003ePatented Flex-Tube elements\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eCheck Valve\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eIntegral; prevents backflow when pump is off\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eAir Relief\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eSelf-venting; automatically expels air\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eTank Material\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eHeavy-duty glass-filled PPL; corrosion-free\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eApplication\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eIn-ground and above ground pools\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eWarranty\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e1 year\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eHayward PerFlex W3EC65A D.E. Pool Filter Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow is the PerFlex different from a conventional D.E. filter?\u003c\/summary\u003e\n\u003cp\u003eConventional D.E. filters coat rigid grid panels that must be backwashed to clean, require fresh D.E. after each backwash, need a multiport valve and dedicated drain line, and require periodic grid acid washing. The PerFlex uses Flex-Tubes that self-clean through the bump mechanism. Spent D.E. is redistributed and reused rather than flushed away, so no backwash valve, drain line, or grid acid washing is needed. Water clarity is the same; the maintenance difference is significant.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long does a D.E. charge last?\u003c\/summary\u003e\n\u003cp\u003eSignificantly longer than in a conventional D.E. filter. Because D.E. is reused through the bump cycle rather than discharged and replaced, a single 6 lb charge can run for several months depending on pool size, bather load, and debris conditions. Most PerFlex owners add a full D.E. recharge only one to three times per season rather than after every cleaning.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat D.E. powder do I use?\u003c\/summary\u003e\n\u003cp\u003eStandard pool-grade diatomaceous earth. Do not use food-grade, pest-control, or industrial D.E. products; those are formulated differently and are not appropriate for pool water contact. Perlite is also compatible with the Flex-Tube design as a silica-free alternative.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eD.E. is appearing in my pool. What does that mean?\u003c\/summary\u003e\n\u003cp\u003eD.E. returning to the pool through the return fittings means one or more Flex-Tube elements has a hole or seam failure allowing powder to bypass the filter media. Stop the pump immediately, drain the tank, remove the tube assembly, and inspect each element individually. Replace any tube showing a breach before restarting.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this a direct replacement for the EC65A?\u003c\/summary\u003e\n\u003cp\u003eYes. W3EC65A is the direct replacement for EC65A with the same specifications and Flex-Tube element design.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdiv aria-label=\"Hayward PerFlex W3EC65A D.E. Pool Filter Manual and Warranty Info\" role=\"complementary\" class=\"doc-links\"\u003e\n\u003ch2\u003eHayward PerFlex W3EC65A D.E. Pool Filter Manual and Warranty Info\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"\/docs\/hayward-perflex-ec40ac-owners-manual.pdf\" target=\"_blank\"\u003eHayward PerFlex W3EC65A - Owner's Manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"\/docs\/hayward-perflex-ec40ac-parts-diagram.pdf\" target=\"_blank\"\u003eHayward PerFlex W3EC65A - Parts Diagram and Replacement Part Numbers (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\/\",\n    \"@type\": \"Product\",\n    \"name\": \"Hayward PerFlex Extended-Cycle D.E. Pool Filter 27 Sq Ft W3EC65A\",\n    \"brand\": {\n      \"@type\": \"https:\/\/schema.org\/Brand\",\n      \"name\": \"Hayward\"\n    },\n    \"sku\": \"W3EC65A\",\n    \"description\": \"Hayward PerFlex W3EC65A extended-cycle D.E. pool filter. 27 sq ft, 6 lbs D.E. capacity, 67 GPM max flow. Patented Flex-Tube design cleans without backwashing. Self-venting, integral check valve, easy-access clamp assembly. No backwash valve or drain line required. Removes particles as small as 2 microns. Replaces EC65A. Professional installation required for warranty validation. 1 year warranty.\",\n    \"category\": \"Pool Filter\",\n    \"itemCondition\": \"https:\/\/schema.org\/NewCondition\",\n    \"offers\": {\n      \"@type\": \"Offer\",\n      \"price\": \"1149.00\",\n      \"priceCurrency\": \"USD\",\n      \"availability\": \"https:\/\/schema.org\/InStock\",\n      \"seller\": {\n        \"@type\": \"Organization\",\n        \"name\": \"NonStop Swim\"\n      },\n      \"shippingDetails\": {\n        \"@type\": \"OfferShippingDetails\",\n        \"shippingRate\": {\n          \"@type\": \"MonetaryAmount\",\n          \"value\": \"0\",\n          \"currency\": \"USD\"\n        },\n        \"shippingDestination\": {\n          \"@type\": \"DefinedRegion\",\n          \"addressCountry\": \"US\"\n        },\n        \"deliveryTime\": {\n          \"@type\": \"ShippingDeliveryTime\",\n          \"handlingTime\": {\n            \"@type\": \"QuantitativeValue\",\n            \"minValue\": 1,\n            \"maxValue\": 2,\n            \"unitCode\": \"DAY\"\n          },\n          \"transitTime\": {\n            \"@type\": \"QuantitativeValue\",\n            \"minValue\": 3,\n            \"maxValue\": 7,\n            \"unitCode\": \"DAY\"\n          }\n        }\n      },\n      \"hasMerchantReturnPolicy\": {\n        \"@type\": \"MerchantReturnPolicy\",\n        \"applicableCountry\": \"US\",\n        \"returnPolicyCategory\": \"https:\/\/schema.org\/MerchantReturnFiniteReturnWindow\",\n        \"merchantReturnDays\": 30,\n        \"returnMethod\": \"https:\/\/schema.org\/ReturnByMail\",\n        \"returnFees\": \"https:\/\/schema.org\/ReturnFeesCustomerResponsibility\",\n        \"restockingFee\": {\n          \"@type\": \"MonetaryAmount\",\n          \"value\": \"229.80\",\n          \"currency\": \"USD\"\n        }\n      }\n    }\n  }\n  \u003c\/script\u003e\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48560543498457,"sku":"W3EC65A","price":1149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/3592\/7513\/files\/hayward-logo.jpg?v=1731006221"},{"product_id":"hayward-perflex-d-e-pool-filter-system-4-lb-1-hp-pump-w3ec30ac1","title":"Hayward Perflex D.E. Pool Filter System 4 lb 1 HP Pump","description":"\u003c!-- more --\u003e\n\u003c!--\n  META \/ SEO FIELDS\n  SEO Title:       Hayward Perflex D.E. Pool Filter System 6 lb 1.5 HP Pump | Model W3EC40C92S\n  Meta Description: Shop the Hayward Perflex W3EC40C92S D.E. pool filter system with 6 lb capacity and 1.5 HP pump. A pre-matched extended-cycle D.E. filter and pump combo for residential in-ground pools up to 20,000 gallons - no backwash valve, no grid teardown, and complete filtration ready to install.\n--\u003e\n\u003cmeta name=\"title\" content=\"Hayward Perflex D.E. Pool Filter System 6 lb 1.5 HP Pump | Model W3EC40C92S\"\u003e\n\u003cmeta name=\"description\" content=\"Shop the Hayward Perflex W3EC40C92S D.E. pool filter system with 6 lb capacity and 1.5 HP pump. A pre-matched extended-cycle D.E. filter and pump combo for residential in-ground pools up to 20,000 gallons - no backwash valve, no grid teardown, and complete filtration ready to install.\"\u003e\n\n\u003cstyle\u003e\n  .product-description {\n    color: inherit;\n    line-height: 1.75;\n    max-width: 860px;\n  }\n  .product-description h2 {\n    font-size: 1.2rem;\n    font-weight: 700;\n    margin: 2rem 0 0.6rem;\n    border-bottom: 2px solid #cce0ff;\n    padding-bottom: 0.3rem;\n  }\n  .product-description h3 {\n    font-size: 1rem;\n    font-weight: 700;\n    margin: 1.5rem 0 0.4rem;\n  }\n  .product-description p { margin: 0 0 1rem; }\n  .product-description ul { margin: 0 0 1rem 1.4rem; padding: 0; }\n  .product-description ul li { margin-bottom: 0.4rem; }\n  .product-description .spec-list {\n    margin: 1rem 0 1.5rem;\n    font-size: 0.95rem;\n    border: 1px solid #c4d9f0;\n    border-radius: 4px;\n    overflow: hidden;\n  }\n  .product-description .spec-row {\n    display: flex;\n    flex-wrap: wrap;\n    border-bottom: 1px solid #c4d9f0;\n  }\n  .product-description .spec-row:last-child { border-bottom: none; }\n  .product-description .spec-key {\n    flex: 0 0 38%;\n    background-color: #e8f1fb;\n    font-weight: 700;\n    padding: 0.5rem 0.75rem;\n    box-sizing: border-box;\n  }\n  .product-description .spec-val {\n    flex: 1 1 62%;\n    padding: 0.5rem 0.75rem;\n    box-sizing: border-box;\n  }\n  .product-description .spec-row:nth-child(even) .spec-val { background-color: #f5f9ff; }\n  .product-description .spec-row:nth-child(even) .spec-key { background-color: #edf4fc; }\n  @media (max-width: 540px) {\n    .product-description .spec-key,\n    .product-description .spec-val { flex: 0 0 100%; }\n    .product-description .spec-key { padding-bottom: 0.2rem; }\n    .product-description .spec-val { padding-top: 0.2rem; }\n  }\n  .product-description .note {\n    background-color: #edf5fc;\n    border-left: 4px solid #0066cc;\n    padding: 0.75rem 1rem;\n    font-size: 0.93rem;\n    margin: 1rem 0;\n    border-radius: 0 4px 4px 0;\n  }\n  .product-description .doc-links {\n    background-color: #f0f6ff;\n    border-left: 4px solid #0066cc;\n    padding: 0.75rem 1rem;\n    margin: 1.5rem 0;\n    border-radius: 0 4px 4px 0;\n  }\n  .product-description .doc-links h2 {\n    border-bottom: none;\n    margin: 0 0 0.4rem;\n    font-size: 1rem;\n    padding-bottom: 0;\n  }\n  .product-description .doc-links ul { margin: 0 0 0 1.2rem; }\n\u003c\/style\u003e\n\n\u003cdiv itemtype=\"https:\/\/schema.org\/Product\" itemscope=\"\" class=\"product-description\"\u003e\n  \u003cmeta itemprop=\"name\" content=\"Hayward Perflex Extended-Cycle D.E. Pool Filter System 6 lb 1.5 HP Pump W3EC40C92S\"\u003e\n  \u003cmeta itemprop=\"brand\" content=\"Hayward\"\u003e\n  \u003cmeta itemprop=\"sku\" content=\"W3EC40C92S\"\u003e\n  \u003cmeta itemprop=\"category\" content=\"Pool Filter System\"\u003e\n\n  \u003cp itemprop=\"description\"\u003eThe Hayward Perflex W3EC40C92S is a 6 lb D.E. pool filter system that pairs the extended-cycle EC40AC flex-tube D.E. filter with a pre-matched 1.5 HP in-ground pool pump for residential in-ground pools up to 20,000 gallons. Patented Flex-Tube bump-to-clean design requires no backwash valve and no grid teardown. 6 lbs D.E. capacity, 40 GPM max flow, easy-access clamp assembly, 1.5\" plumbing. 1 year warranty.\u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eSKU: W3EC40C92S\u003c\/li\u003e\n    \u003cli\u003e1 year warranty\u003c\/li\u003e\n    \u003cli\u003e6 lb extended-cycle D.E. pool filter system; 40 GPM max flow\u003c\/li\u003e\n    \u003cli\u003ePre-matched 1.5 HP single-speed in-ground pool pump included\u003c\/li\u003e\n    \u003cli\u003ePatented Flex-Tube bump-to-clean design; no backwashing required\u003c\/li\u003e\n    \u003cli\u003eRemoves particles as small as 2–5 microns\u003c\/li\u003e\n    \u003cli\u003eBump handle causes Flex-Tubes to instantly purge dirt and powder; D.E. is reused rather than discharged\u003c\/li\u003e\n    \u003cli\u003eSelf-venting design automatically expels air from the system\u003c\/li\u003e\n    \u003cli\u003eEasy-access clamp assembly for service; tool-free housing access\u003c\/li\u003e\n    \u003cli\u003eCombination pressure gauge and manual air relief valve\u003c\/li\u003e\n    \u003cli\u003eCorrosion-resistant UV-stable thermoplastic tank\u003c\/li\u003e\n    \u003cli\u003e1.5\" NPT plumbing connections\u003c\/li\u003e\n    \u003cli\u003eFor residential in-ground pools up to 20,000 gallons\u003c\/li\u003e\n    \u003cli\u003eD.E. powder not included; 6 lb pool-grade D.E. required for initial charge\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- ============================================================\n       SECTION 1: Overview\n  ============================================================ --\u003e\n  \u003ch2\u003eHayward Perflex W3EC40C92S D.E. Pool Filter System – Pre-Matched Extended-Cycle D.E. Filter and 1.5 HP Pump\u003c\/h2\u003e\n\n  \u003cp\u003eThe Hayward Perflex W3EC40C92S is a 6 lb D.E. pool filter system that pairs the extended-cycle EC40AC flex-tube D.E. filter with a 1.5 HP in-ground pool pump in a single, factory-tested combination. Designed for residential in-ground pools up to 20,000 gallons, the W3EC40C92S delivers the finest residential filtration available — D.E. filtration at 2–5 microns — without the compatibility guesswork of selecting a filter and pump separately. The extended-cycle flex-tube design requires no backwash valve, no dedicated drain line, and no seasonal grid acid-wash teardown; the pump is sized to produce the flow rate the EC40AC filter is rated to handle within the target pool volume range.\u003c\/p\u003e\n\n  \u003cp\u003eFor pool owners replacing an aging filter-and-pump combination, setting up a new in-ground pool, or upgrading from sand or cartridge filtration to D.E., the W3EC40C92S provides a complete solution in one purchase. Both components are factory-tested together, and the plumbing interface between the pump outlet and filter inlet is pre-configured to the correct port sizing, reducing the number of additional fittings required at installation.\u003c\/p\u003e\n\n  \u003cdiv class=\"note\"\u003eD.E. powder is not included. You will need 6 lbs of pool-grade diatomaceous earth for the initial charge. Use only pool-grade D.E. and pre-mix it into a slurry before adding it through the filter with the pump running.\u003c\/div\u003e\n\n  \u003c!-- ============================================================\n       SECTION 2: What's Included\n  ============================================================ --\u003e\n  \u003ch2\u003eWhat Comes with the Hayward Perflex W3EC40C92S D.E. Pool Filter System\u003c\/h2\u003e\n\n  \u003cp\u003eThe W3EC40C92S ships as a complete package. Confirming the included components helps identify whether any additional parts are needed before installation.\u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEC40AC extended-cycle flex-tube D.E. filter\u003c\/strong\u003e – The 6 lb capacity extended-cycle filter housing with clamp-band closure, bump handle, sump collection chamber, manual air relief valve, and pressure gauge port. Flex-tube elements are pre-installed at shipment.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e1.5 HP in-ground pool pump\u003c\/strong\u003e – A single-speed in-ground pool pump pre-matched to the EC40AC filter's flow requirements for pools up to 20,000 gallons, with strainer basket, union connections, and drain plugs included.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePre-configured pump-to-filter connection\u003c\/strong\u003e – The connection between the pump outlet and filter inlet is sized and configured at the factory to eliminate port-sizing mismatches that can occur when assembling components independently.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePressure gauge\u003c\/strong\u003e – Installed on the filter housing for operating pressure monitoring and service interval guidance.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManual air relief valve\u003c\/strong\u003e – Installed on the filter housing to purge air during startup and after D.E. recharge events.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- ============================================================\n       SECTION 3: Specifications\n  ============================================================ --\u003e\n  \u003ch2\u003eHayward Perflex W3EC40C92S D.E. Filter System Specifications\u003c\/h2\u003e\n\n  \u003cdiv class=\"spec-list\"\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eSKU \/ Model\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eW3EC40C92S\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eSystem Type\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eExtended-Cycle D.E. Pool Filter System (Filter + Pump)\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eFilter Model\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eEC40AC (6 lb D.E. capacity)\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eFilter Type\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eExtended-cycle D.E. (Flex-Tube); bump-to-clean\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003ePump Motor\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e1.5 HP single-speed in-ground\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eD.E. Capacity\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e6 lbs pool-grade D.E. (not included)\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eFiltration Range\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e2–5 microns\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eMax Flow Rate\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e40 GPM\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eMaximum Pool Size\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eUp to 20,000 gallons\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eOperating Pressure (max)\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e50 PSI\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eBackwash Valve Required\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eNo\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eCleaning Method\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eBump handle; no backwashing needed\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eHousing Closure Type\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eClamp band (tool-free)\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003ePort Size\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e1-1\/2 in. NPT\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eInternal Filter Element\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eKnitted flex-tube elements\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eAir Relief\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eSelf-venting; manual air relief valve\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eTank Material\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eCorrosion-resistant UV-stable thermoplastic\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eApplication\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eResidential in-ground pools up to 20,000 gallons\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eElectrical\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e115V \/ 230V (refer to pump motor label for wiring configuration)\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eWarranty\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e1 year\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ============================================================\n       SECTION 4: Why Pre-Matched\n  ============================================================ --\u003e\n  \u003ch2\u003eWhy the Hayward Perflex W3EC40C92S Eliminates Pump-to-Filter Compatibility Guesswork\u003c\/h2\u003e\n\n  \u003cp\u003ePairing a D.E. filter and pump independently requires confirming that the pump's GPM output at the system's total dynamic head falls within the filter's rated flow range. Too little flow and the pool does not turn over adequately; too much flow and the filter runs above its rated pressure ceiling, which accelerates D.E. cake loading, shortens service intervals, and puts stress on the flex-tube elements and housing seals. For pool owners without experience in pump curve analysis and hydraulic system design, this is the most common source of equipment performance problems after installation.\u003c\/p\u003e\n\n  \u003cp\u003eThe W3EC40C92S eliminates that risk. The 1.5 HP pump included in this system is factory-tested with the EC40AC filter to confirm that flow, pressure, and D.E. service interval all fall within appropriate ranges for pools up to 20,000 gallons. The pre-configured pump-to-filter connection also eliminates the port-sizing adapter issues that commonly arise when combining separately sourced components.\u003c\/p\u003e\n\n  \u003cp\u003ePool owners who already have a functioning in-ground pump and need only the filter can purchase the standalone EC40AC filter separately and pair it with their existing pump — provided the pump's output at operating head does not exceed the filter's 40 GPM rating.\u003c\/p\u003e\n\n  \u003c!-- ============================================================\n       SECTION 5: How It Works\n  ============================================================ --\u003e\n  \u003ch2\u003eHow the Perflex EC40AC Filter in the W3EC40C92S Maintains Itself Between Full Recharges\u003c\/h2\u003e\n\n  \u003cp\u003eThe 1.5 HP pump in the W3EC40C92S draws pool water through the skimmer and main drain and delivers it to the EC40AC filter. Inside the filter, pool water passes through the D.E.-coated flex-tube elements, which capture particles down to 2–5 microns. Filtered water exits through the outlet and returns to the pool. Over time, the D.E. cake on the tubes accumulates debris and operating pressure rises on the gauge.\u003c\/p\u003e\n\n  \u003cp\u003eWhen pressure climbs 8–10 PSI above the clean baseline, turn off the pump and stroke the bump handle 8 times — down slowly, up briskly. The flex tubes compress and flex, dislodging the loaded D.E. cake into the sump at the base of the filter. The tubes immediately recoat from D.E. still suspended in the water, and restarting the pump typically restores pressure near the clean baseline without adding any new D.E. powder. This bump cycle can be repeated multiple times before the sump needs draining.\u003c\/p\u003e\n\n  \u003cp\u003eWhen bumping no longer restores pressure, drain the sump by opening the drain at the base of the filter, allowing the spent D.E. slurry to discharge fully, and closing it again. If pressure returns near baseline after draining, the existing D.E. charge is still active. Only when both bumping and sump draining fail to restore acceptable pressure is a full 6 lb recharge required.\u003c\/p\u003e\n\n  \u003c!-- ============================================================\n       SECTION 6: Installation Overview\n  ============================================================ --\u003e\n  \u003ch3\u003eInstalling the Hayward Perflex W3EC40C92S – System Placement and Startup Checklist\u003c\/h3\u003e\n\n  \u003cp\u003ePosition the filter and pump on a stable, level equipment pad with clear access to the bump handle on the filter exterior, the sump drain at the filter base, and the pump strainer basket on the front of the pump body. The system connects to the pool's return and suction plumbing through 1-1\/2 in. NPT fittings at the pump inlet and filter outlet. Route the suction line from the pool's skimmer and main drain to the pump inlet, and route the return line from the filter outlet back to the pool's return fittings.\u003c\/p\u003e\n\n  \u003cp\u003eBefore adding D.E., fill the pump strainer basket with water to assist priming. With the pump running, open the manual air relief valve on the filter and hold it open until water flows steadily from the port, confirming the system is fully primed. Then, with the pump still running, slowly add the 6 lb initial D.E. charge as a pre-mixed slurry through the filter inlet. Allow 3–5 minutes of circulation before checking the gauge and recording the clean baseline pressure. The pump must be connected to a dedicated GFCI-protected electrical circuit — do not operate pool pump equipment without GFCI protection regardless of circuit voltage.\u003c\/p\u003e\n\n  \u003c!-- ============================================================\n       SECTION 7: Seasonal Maintenance\n  ============================================================ --\u003e\n  \u003ch2\u003eSeasonal Maintenance and Winterization for the Hayward Perflex W3EC40C92S D.E. Filter System\u003c\/h2\u003e\n\n  \u003cp\u003eAt the end of each swim season, drain the filter sump completely and flush it with clean water. In mild climates where temperatures do not reach hard freeze levels, drain the filter housing fully through the sump drain and air relief valve, drain the pump through its designated drain plugs, and leave all drains open through the off-season to prevent water from collecting in either component.\u003c\/p\u003e\n\n  \u003cp\u003eIn freeze climates, full winterization requires draining both the pump and filter of all water before temperatures drop. Open the clamp housing on the EC40AC filter, remove the flex-tube assembly, rinse it thoroughly, and store it indoors in a dry location to protect the knitted tube material from freeze-thaw damage. Remove the pump drain plugs and any water from the pump pot and volute, and store the pump in a protected, non-freezing location if possible. Water left in either component through a hard freeze cycle can cause cracking that voids the warranty and requires full component replacement.\u003c\/p\u003e\n\n  \u003cp\u003eIn spring, reinstall the pump drain plugs, reinstall the flex-tube assembly in the filter housing, secure the clamp band, and perform a full 6 lb D.E. recharge before opening the pool. Record a new clean baseline pressure before the season begins.\u003c\/p\u003e\n\n  \u003c!-- ============================================================\n       SECTION 8: FAQ\n  ============================================================ --\u003e\n  \u003ch2\u003eHayward Perflex W3EC40C92S D.E. Pool Filter System Frequently Asked Questions\u003c\/h2\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the difference between the W3EC40C92S system and the standalone EC40AC filter?\u003c\/summary\u003e\n    \u003cp\u003eThe W3EC40C92S is the complete system version of the standalone EC40AC filter, bundled with a pre-matched 1.5 HP in-ground pool pump. The filter hardware, flex-tube elements, clamp housing, bump handle, sump, and plumbing connections are identical between the two. The W3EC40C92S is the right choice when both a filter and a pump are needed. The standalone EC40AC is the right choice when an existing compatible in-ground pump is already installed and functioning — provided its GPM output at operating head does not exceed the EC40AC's 40 GPM rated flow ceiling.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eIs the W3EC40C92S designed for in-ground or above-ground pools?\u003c\/summary\u003e\n    \u003cp\u003eThe W3EC40C92S is designed and rated for residential in-ground pool applications up to 20,000 gallons. The 1.5 HP pump included in this system is an in-ground pool pump, which differs from above-ground pool pumps in priming design, head ratings, and flow characteristics. For smaller in-ground pools up to 10,000 gallons, the W3EC30AC1 system with the EC30AC filter and 1 HP pump is the more appropriate choice.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes D.E. powder come included with the W3EC40C92S?\u003c\/summary\u003e\n    \u003cp\u003eNo. The W3EC40C92S system does not include D.E. powder. The initial charge of 6 lbs of pool-grade diatomaceous earth must be purchased separately before the system can be placed in service. Use only pool-grade D.E. — not food-grade, pest-control, or construction-grade products. Pre-slurry the powder with water in a bucket before adding it to the filter to minimize dust and ensure even tube coating.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eD.E. is appearing in my pool through the return fittings. What does that mean?\u003c\/summary\u003e\n    \u003cp\u003eD.E. returning to the pool indicates one or more flex-tube elements has a hole or seam failure. Stop the pump immediately, open the filter housing using the clamp, and inspect each tube individually. Replace any tube with a visible breach before restarting the system.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eCan the pump in the W3EC40C92S system be replaced with a variable-speed pump?\u003c\/summary\u003e\n    \u003cp\u003eThe W3EC40C92S ships with a single-speed 1.5 HP pump. The system pump can be replaced with a compatible variable-speed in-ground pool pump at any point after installation, provided the replacement pump's GPM output at the lowest intended filtration speed remains above the minimum needed for the daily turnover requirement of the pool, and that the maximum speed output does not exceed the EC40AC filter's 40 GPM ceiling. Consult the replacement pump's performance curve and the pool's total dynamic head to verify compatibility before purchasing the variable-speed upgrade.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- ============================================================\n       SECTION 9: Downloads\n  ============================================================ --\u003e\n  \u003cdiv aria-label=\"Hayward Perflex W3EC40C92S D.E. Pool Filter System Manual and Warranty Info\" role=\"complementary\" class=\"doc-links\"\u003e\n    \u003ch2\u003eHayward Perflex W3EC40C92S D.E. Pool Filter System Manual and Warranty Info\u003c\/h2\u003e\n    \u003cul\u003e\n      \u003cli\u003e\u003ca rel=\"noopener\" href=\"\/docs\/hayward-perflex-w3ec40c92s-system-owners-manual.pdf\" target=\"_blank\"\u003eHayward Perflex W3EC40C92S D.E. Pool Filter System Owner's Manual (Filter and Pump Installation and Operating Instructions) (PDF)\u003c\/a\u003e\u003c\/li\u003e\n      \u003cli\u003e\u003ca rel=\"noopener\" href=\"\/docs\/hayward-perflex-w3ec40c92s-parts-diagram.pdf\" target=\"_blank\"\u003eHayward Perflex W3EC40C92S D.E. Pool Filter System Parts Diagram and Replacement Part Numbers (PDF)\u003c\/a\u003e\u003c\/li\u003e\n      \u003cli\u003e\u003ca rel=\"noopener\" href=\"\/docs\/hayward-perflex-w3ec40c92s-pump-wiring-electrical-guide.pdf\" target=\"_blank\"\u003eHayward Perflex W3EC40C92S System Pump Wiring and Electrical Safety Reference Guide (PDF)\u003c\/a\u003e\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\/\",\n    \"@type\": \"Product\",\n    \"name\": \"Hayward Perflex Extended-Cycle D.E. Pool Filter System 6 lb 1.5 HP Pump W3EC40C92S\",\n    \"brand\": {\n      \"@type\": \"https:\/\/schema.org\/Brand\",\n      \"name\": \"Hayward\"\n    },\n    \"sku\": \"W3EC40C92S\",\n    \"gtin\": \"610377386982\",\n    \"description\": \"Hayward Perflex W3EC40C92S extended-cycle D.E. pool filter system. EC40AC filter with 6 lb D.E. capacity paired with pre-matched 1.5 HP single-speed in-ground pool pump. 40 GPM max flow, 2-5 micron filtration. Patented Flex-Tube bump-to-clean design; no backwash valve or grid teardown required. Easy-access clamp assembly. Self-venting. 1.5 inch NPT plumbing. For residential in-ground pools up to 20,000 gallons. 1 year warranty.\",\n    \"category\": \"Pool Filter System\",\n    \"itemCondition\": \"https:\/\/schema.org\/NewCondition\",\n    \"offers\": {\n      \"@type\": \"Offer\",\n      \"price\": \"1109.00\",\n      \"priceCurrency\": \"USD\",\n      \"availability\": \"https:\/\/schema.org\/InStock\",\n      \"seller\": {\n        \"@type\": \"Organization\",\n        \"name\": \"NonStop Swim\"\n      },\n      \"shippingDetails\": {\n        \"@type\": \"OfferShippingDetails\",\n        \"shippingRate\": {\n          \"@type\": \"MonetaryAmount\",\n          \"value\": \"0\",\n          \"currency\": \"USD\"\n        },\n        \"shippingDestination\": {\n          \"@type\": \"DefinedRegion\",\n          \"addressCountry\": \"US\"\n        },\n        \"deliveryTime\": {\n          \"@type\": \"ShippingDeliveryTime\",\n          \"handlingTime\": {\n            \"@type\": \"QuantitativeValue\",\n            \"minValue\": 1,\n            \"maxValue\": 2,\n            \"unitCode\": \"DAY\"\n          },\n          \"transitTime\": {\n            \"@type\": \"QuantitativeValue\",\n            \"minValue\": 3,\n            \"maxValue\": 7,\n            \"unitCode\": \"DAY\"\n          }\n        }\n      },\n      \"hasMerchantReturnPolicy\": {\n        \"@type\": \"MerchantReturnPolicy\",\n        \"applicableCountry\": \"US\",\n        \"returnPolicyCategory\": \"https:\/\/schema.org\/MerchantReturnFiniteReturnWindow\",\n        \"merchantReturnDays\": 30,\n        \"returnMethod\": \"https:\/\/schema.org\/ReturnByMail\",\n        \"returnFees\": \"https:\/\/schema.org\/ReturnFeesCustomerResponsibility\",\n        \"restockingFee\": {\n          \"@type\": \"MonetaryAmount\",\n          \"value\": \"221.80\",\n          \"currency\": \"USD\"\n        }\n      }\n    }\n  }\n\u003c\/script\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48560550609113,"sku":"W3EC40C92S","price":1109.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/3592\/7513\/files\/Hayward-Perflex-D.E.-Pool-Filter-System.jpg?v=1776904621"},{"product_id":"hayward-perflex-d-e-pool-filter-with-clamp-5-lb-w3ec50ac","title":"Hayward Perflex D.E. Pool Filter with Clamp 5 lb","description":"\u003c!-- more --\u003e\n\u003cstyle\u003e\n  .product-description {\n    color: inherit;\n    line-height: 1.75;\n    max-width: 860px;\n  }\n  .product-description h2 {\n    font-size: 1.2rem;\n    font-weight: 700;\n    margin: 2rem 0 0.6rem;\n    border-bottom: 2px solid #cce0ff;\n    padding-bottom: 0.3rem;\n  }\n  .product-description h3 {\n    font-size: 1rem;\n    font-weight: 700;\n    margin: 1.5rem 0 0.4rem;\n  }\n  .product-description p { margin: 0 0 1rem; }\n  .product-description ul { margin: 0 0 1rem 1.4rem; padding: 0; }\n  .product-description ul li { margin-bottom: 0.4rem; }\n  .product-description .spec-list {\n    margin: 1rem 0 1.5rem;\n    font-size: 0.95rem;\n    border: 1px solid #c4d9f0;\n    border-radius: 4px;\n    overflow: hidden;\n  }\n  .product-description .spec-row {\n    display: flex;\n    flex-wrap: wrap;\n    border-bottom: 1px solid #c4d9f0;\n  }\n  .product-description .spec-row:last-child { border-bottom: none; }\n  .product-description .spec-key {\n    flex: 0 0 38%;\n    background-color: #e8f1fb;\n    font-weight: 700;\n    padding: 0.5rem 0.75rem;\n    box-sizing: border-box;\n  }\n  .product-description .spec-val {\n    flex: 1 1 62%;\n    padding: 0.5rem 0.75rem;\n    box-sizing: border-box;\n  }\n  .product-description .spec-row:nth-child(even) .spec-val { background-color: #f5f9ff; }\n  .product-description .spec-row:nth-child(even) .spec-key { background-color: #edf4fc; }\n  @media (max-width: 540px) {\n    .product-description .spec-key,\n    .product-description .spec-val { flex: 0 0 100%; }\n    .product-description .spec-key { padding-bottom: 0.2rem; }\n    .product-description .spec-val { padding-top: 0.2rem; }\n  }\n  .product-description .note {\n    background-color: #edf5fc;\n    border-left: 4px solid #0066cc;\n    padding: 0.75rem 1rem;\n    font-size: 0.93rem;\n    margin: 1rem 0;\n    border-radius: 0 4px 4px 0;\n  }\n  .product-description .doc-links {\n    background-color: #f0f6ff;\n    border-left: 4px solid #0066cc;\n    padding: 0.75rem 1rem;\n    margin: 1.5rem 0;\n    border-radius: 0 4px 4px 0;\n  }\n  .product-description .doc-links h2 {\n    border-bottom: none;\n    margin: 0 0 0.4rem;\n    font-size: 1rem;\n    padding-bottom: 0;\n  }\n  .product-description .doc-links ul { margin: 0 0 0 1.2rem; }\n\u003c\/style\u003e\n\u003cdiv class=\"product-description\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Product\"\u003e\n\u003cmeta itemprop=\"name\" content=\"Hayward PerFlex Extended-Cycle D.E. Pool Filter 25 Sq Ft W3EC50AC\"\u003e \u003cmeta itemprop=\"brand\" content=\"Hayward\"\u003e \u003cmeta itemprop=\"sku\" content=\"W3EC50AC\"\u003e \u003cmeta itemprop=\"category\" content=\"Pool Filter\"\u003e\n\u003cp itemprop=\"description\"\u003eThe Hayward PerFlex W3EC50AC is a 25 sq ft extended-cycle D.E. pool filter for above ground and small in-ground pools. Patented Flex-Tube bump-to-clean design requires no backwashing. 5 lbs D.E. capacity, 50 GPM max flow, easy-access clamp assembly, 1.5\" plumbing. Replaces EC50AC. 1 year warranty.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSKU: W3EC50AC (replaces EC50AC)\u003c\/li\u003e\n\u003cli\u003e1 year warranty\u003c\/li\u003e\n\u003cli\u003e25 sq ft extended-cycle D.E. pool filter; 50 GPM max flow\u003c\/li\u003e\n\u003cli\u003ePatented Flex-Tube bump-to-clean design; no backwashing required\u003c\/li\u003e\n\u003cli\u003e5 lbs D.E. capacity; D.E. powder not included\u003c\/li\u003e\n\u003cli\u003eRemoves particles as small as 2 microns\u003c\/li\u003e\n\u003cli\u003eBump handle causes Flex-Tubes to instantly purge dirt and powder; D.E. is reused rather than discharged\u003c\/li\u003e\n\u003cli\u003eSelf-venting design automatically expels air from the system\u003c\/li\u003e\n\u003cli\u003eEasy-access clamp assembly for service\u003c\/li\u003e\n\u003cli\u003eCombination pressure gauge and threaded inspection\/service port\u003c\/li\u003e\n\u003cli\u003eHeavy-duty injection-molded thermoplastic tank\u003c\/li\u003e\n\u003cli\u003e1.5\" plumbing connections\u003c\/li\u003e\n\u003cli\u003eFor above ground and small in-ground pools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHayward PerFlex W3EC50AC Extended-Cycle D.E. Pool Filter\u003c\/h2\u003e\n\u003cp\u003eThe PerFlex W3EC50AC delivers 2-micron D.E. filtration without the maintenance of a conventional grid D.E. filter. No backwash valve, no drain line, no fresh D.E. needed after each cleaning. When pressure rises 10 to 12 PSI above the clean baseline, stop the pump and stroke the bump handle 8 times. The Flex-Tubes flex and shed the loaded D.E. cake; dirty and clean D.E. mix together and recoat the tube surfaces. Restart the pump. In most cases pressure returns near baseline and filtration continues without adding any fresh powder. A full 5 lb recharge is only needed when bumping no longer restores acceptable pressure after the sump is drained.\u003c\/p\u003e\n\u003cdiv class=\"note\"\u003eD.E. powder is not included. You will need 5 lbs of pool-grade diatomaceous earth for the initial charge. Use only pool-grade D.E. and pre-mix it into a slurry before adding it through the filter with the pump running.\u003c\/div\u003e\n\u003ch2\u003eHayward PerFlex W3EC50AC D.E. Filter Specifications\u003c\/h2\u003e\n\u003cdiv class=\"spec-list\"\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eSKU \/ Model\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eW3EC50AC (replaces EC50AC)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eFilter Type\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eExtended-cycle D.E. (Flex-Tube); bump-to-clean\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eFilter Area\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e25 sq ft\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eD.E. Capacity\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e5 lbs pool-grade D.E. (not included)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eMax Flow Rate\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e50 GPM\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eFiltration Range\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e2 microns\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eBackwash Valve Required\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eNo\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eCleaning Method\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eBump handle; no backwashing needed\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eHousing Closure\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eEasy-access clamp assembly\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003ePort Size\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e1.5\" plumbing\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eAir Relief\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eSelf-venting; automatically expels air\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eTank Material\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eHeavy-duty injection-molded thermoplastic\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003ePool Application\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eAbove ground and small in-ground pools\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eWarranty\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e1 year\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eHayward PerFlex W3EC50AC D.E. Pool Filter Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I clean this filter?\u003c\/summary\u003e\n\u003cp\u003eWhen operating pressure rises 10 to 12 PSI above the clean starting pressure, stop the pump and stroke the bump handle 8 times (down slowly, up briskly). The Flex-Tubes flex and shed the loaded D.E., which redistributes and recoats the tube surfaces. Restart the pump. No backwash, no fresh D.E., no disassembly needed. When bumping alone stops restoring pressure, drain the sump at the base of the filter. A full D.E. recharge is only required when both bumping and draining no longer restore acceptable pressure.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes D.E. powder come with this filter?\u003c\/summary\u003e\n\u003cp\u003eNo. You need 5 lbs of pool-grade diatomaceous earth, purchased separately. Pre-mix the powder into a slurry with water in a bucket, then add it through the filter inlet with the pump running. Do not use food-grade, pest-control, or industrial D.E. products.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this filter for above ground or in-ground pools?\u003c\/summary\u003e\n\u003cp\u003ePrimarily above ground pools. Hayward lists the W3EC50AC for above ground and small in-ground pool applications. For larger in-ground pools with a higher-output pump, the W3EC65A (27 sq ft, 67 GPM) is the more appropriate choice.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eD.E. is appearing in my pool. What does that mean?\u003c\/summary\u003e\n\u003cp\u003eD.E. in the pool through the return fittings means one or more Flex-Tube elements has a hole or seam failure. Stop the pump immediately, open the filter housing using the clamp, and inspect each tube individually. Replace any tube with a visible breach before restarting.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this a direct replacement for the EC50AC?\u003c\/summary\u003e\n\u003cp\u003eYes. W3EC50AC is the direct replacement for EC50AC with the same specifications and Flex-Tube design.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdiv class=\"doc-links\" role=\"complementary\" aria-label=\"Hayward PerFlex W3EC50AC D.E. Pool Filter Manual and Warranty Info\"\u003e\n\u003ch2\u003eHayward PerFlex W3EC50AC D.E. Pool Filter Manual and Warranty Info\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/docs\/hayward-perflex-ec40c-owners-manual.pdf\" rel=\"noopener\" target=\"_blank\"\u003eHayward PerFlex W3EC50AC - Owner's Manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/docs\/hayward-perflex-ec40c-parts-diagram.pdf\" rel=\"noopener\" target=\"_blank\"\u003eHayward PerFlex W3EC50AC - Parts Diagram and Replacement Part Numbers (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\/\",\n    \"@type\": \"Product\",\n    \"name\": \"Hayward PerFlex Extended-Cycle D.E. Pool Filter 25 Sq Ft W3EC50AC\",\n    \"brand\": {\n      \"@type\": \"https:\/\/schema.org\/Brand\",\n      \"name\": \"Hayward\"\n    },\n    \"sku\": \"W3EC50AC\",\n    \"gtin\": \"610377386999\",\n    \"description\": \"Hayward PerFlex W3EC50AC extended-cycle D.E. pool filter. 25 sq ft, 5 lbs D.E. capacity, 50 GPM max flow. Patented Flex-Tube bump-to-clean design; no backwashing required. Easy-access clamp assembly. Self-venting. 1.5 inch plumbing. For above ground and small in-ground pools. Replaces EC50AC. 1 year warranty.\",\n    \"category\": \"Pool Filter\",\n    \"itemCondition\": \"https:\/\/schema.org\/NewCondition\",\n    \"offers\": {\n      \"@type\": \"Offer\",\n      \"price\": \"729.00\",\n      \"priceCurrency\": \"USD\",\n      \"availability\": \"https:\/\/schema.org\/InStock\",\n      \"seller\": {\n        \"@type\": \"Organization\",\n        \"name\": \"NonStop Swim\"\n      },\n      \"shippingDetails\": {\n        \"@type\": \"OfferShippingDetails\",\n        \"shippingRate\": {\n          \"@type\": \"MonetaryAmount\",\n          \"value\": \"0\",\n          \"currency\": \"USD\"\n        },\n        \"shippingDestination\": {\n          \"@type\": \"DefinedRegion\",\n          \"addressCountry\": \"US\"\n        },\n        \"deliveryTime\": {\n          \"@type\": \"ShippingDeliveryTime\",\n          \"handlingTime\": {\n            \"@type\": \"QuantitativeValue\",\n            \"minValue\": 1,\n            \"maxValue\": 2,\n            \"unitCode\": \"DAY\"\n          },\n          \"transitTime\": {\n            \"@type\": \"QuantitativeValue\",\n            \"minValue\": 3,\n            \"maxValue\": 7,\n            \"unitCode\": \"DAY\"\n          }\n        }\n      },\n      \"hasMerchantReturnPolicy\": {\n        \"@type\": \"MerchantReturnPolicy\",\n        \"applicableCountry\": \"US\",\n        \"returnPolicyCategory\": \"https:\/\/schema.org\/MerchantReturnFiniteReturnWindow\",\n        \"merchantReturnDays\": 30,\n        \"returnMethod\": \"https:\/\/schema.org\/ReturnByMail\",\n        \"returnFees\": \"https:\/\/schema.org\/ReturnFeesCustomerResponsibility\",\n        \"restockingFee\": {\n          \"@type\": \"MonetaryAmount\",\n          \"value\": \"145.80\",\n          \"currency\": \"USD\"\n        }\n      }\n    }\n  }\n  \u003c\/script\u003e\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48560552837337,"sku":"W3EC50AC","price":729.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/3592\/7513\/files\/Hayward-Perflex-D.E-Pool-Filter.jpg?v=1776905242"},{"product_id":"hayward-perflex-d-e-pool-filter-system-5-lb-1-5-hp-pump-model-w3ec40c15","title":"Hayward Perflex D.E. Pool Filter System 5 lb 1.5 HP Pump","description":"\u003c!-- more --\u003e\n\u003cstyle\u003e\n  .product-description {\n    color: inherit;\n    line-height: 1.75;\n    max-width: 860px;\n  }\n  .product-description h2 {\n    font-size: 1.2rem;\n    font-weight: 700;\n    margin: 2rem 0 0.6rem;\n    border-bottom: 2px solid #cce0ff;\n    padding-bottom: 0.3rem;\n  }\n  .product-description h3 {\n    font-size: 1rem;\n    font-weight: 700;\n    margin: 1.5rem 0 0.4rem;\n  }\n  .product-description p { margin: 0 0 1rem; }\n  .product-description ul { margin: 0 0 1rem 1.4rem; padding: 0; }\n  .product-description ul li { margin-bottom: 0.4rem; }\n  .product-description .spec-list {\n    margin: 1rem 0 1.5rem;\n    font-size: 0.95rem;\n    border: 1px solid #c4d9f0;\n    border-radius: 4px;\n    overflow: hidden;\n  }\n  .product-description .spec-row {\n    display: flex;\n    flex-wrap: wrap;\n    border-bottom: 1px solid #c4d9f0;\n  }\n  .product-description .spec-row:last-child { border-bottom: none; }\n  .product-description .spec-key {\n    flex: 0 0 38%;\n    background-color: #e8f1fb;\n    font-weight: 700;\n    padding: 0.5rem 0.75rem;\n    box-sizing: border-box;\n  }\n  .product-description .spec-val {\n    flex: 1 1 62%;\n    padding: 0.5rem 0.75rem;\n    box-sizing: border-box;\n  }\n  .product-description .spec-row:nth-child(even) .spec-val { background-color: #f5f9ff; }\n  .product-description .spec-row:nth-child(even) .spec-key { background-color: #edf4fc; }\n  @media (max-width: 540px) {\n    .product-description .spec-key,\n    .product-description .spec-val { flex: 0 0 100%; }\n    .product-description .spec-key { padding-bottom: 0.2rem; }\n    .product-description .spec-val { padding-top: 0.2rem; }\n  }\n  .product-description .note {\n    background-color: #edf5fc;\n    border-left: 4px solid #0066cc;\n    padding: 0.75rem 1rem;\n    font-size: 0.93rem;\n    margin: 1rem 0;\n    border-radius: 0 4px 4px 0;\n  }\n  .product-description .doc-links {\n    background-color: #f0f6ff;\n    border-left: 4px solid #0066cc;\n    padding: 0.75rem 1rem;\n    margin: 1.5rem 0;\n    border-radius: 0 4px 4px 0;\n  }\n  .product-description .doc-links h2 {\n    border-bottom: none;\n    margin: 0 0 0.4rem;\n    font-size: 1rem;\n    padding-bottom: 0;\n  }\n  .product-description .doc-links ul { margin: 0 0 0 1.2rem; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"product-description\" itemscope itemtype=\"https:\/\/schema.org\/Product\"\u003e\n  \u003cmeta itemprop=\"name\" content=\"Hayward PerFlex D.E. Filter System with 1.5 HP PowerFlo Matrix Pump W3EC50C93S\"\u003e\n  \u003cmeta itemprop=\"brand\" content=\"Hayward\"\u003e\n  \u003cmeta itemprop=\"sku\" content=\"W3EC50C93S\"\u003e\n  \u003cmeta itemprop=\"category\" content=\"Pool Filter\"\u003e\n\n  \u003cp itemprop=\"description\"\u003eThe Hayward W3EC50C93S is a 25 sq ft PerFlex extended-cycle D.E. filter system for above ground pools. Includes EC50AC filter with clamp, 1.5 HP PowerFlo Matrix pump, modular platform base, union connection, and 1.5\" hose package. Bump-to-clean design requires no backwash valve. 1 year warranty.\u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eSKU: W3EC50C93S\u003c\/li\u003e\n    \u003cli\u003e1 year warranty\u003c\/li\u003e\n    \u003cli\u003e25 sq ft PerFlex extended-cycle D.E. filter system for above ground pools\u003c\/li\u003e\n    \u003cli\u003eIncludes: EC50AC filter with clamp, 1.5 HP PowerFlo Matrix pump, modular platform base, union connection, 1.5\" hose package\u003c\/li\u003e\n    \u003cli\u003eD.E. powder not included\u003c\/li\u003e\n    \u003cli\u003eBump-to-clean design; no backwash valve needed; no drain line required\u003c\/li\u003e\n    \u003cli\u003eRemoves particles as small as 2 microns\u003c\/li\u003e\n    \u003cli\u003eFlex-Tubes reuse D.E. powder; single charge lasts significantly longer than conventional D.E. filters\u003c\/li\u003e\n    \u003cli\u003ePowerFlo Matrix 1.5 HP pump: industrial-size strainer basket, side-discharge port, 115V\u003c\/li\u003e\n    \u003cli\u003ePerformance-matched: filter and pump sized for each other at this pool scale\u003c\/li\u003e\n    \u003cli\u003eCompatible with chlorine, bromine, ozone, and salt water sanitizers\u003c\/li\u003e\n    \u003cli\u003eDimensions: 26\" x 17\" x 33.75\"\u003c\/li\u003e\n    \u003cli\u003eMade in the USA\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eHayward PerFlex W3EC50C93S D.E. Filter System for Above Ground Pools\u003c\/h2\u003e\n  \u003cp\u003eThe W3EC50C93S bundles Hayward's EC50AC PerFlex extended-cycle D.E. filter with a 1.5 HP PowerFlo Matrix above ground pump, a platform base, and all the hose hardware needed to connect to your pool. The PerFlex design uses patented Flex-Tubes instead of rigid D.E. grids. When pressure rises, you stop the pump and stroke the bump handle to clean the filter; the Flex-Tubes flex and shed the loaded D.E., which redistributes and recoats the tubes. No backwash valve, no drain line, no fresh D.E. needed after each cleaning. A single D.E. charge lasts significantly longer than in a conventional grid filter because the powder is reused rather than flushed away.\u003c\/p\u003e\n\n  \u003cp\u003eThe pump and filter are performance-matched at the factory, meaning the 1.5 HP Matrix pump's flow output falls within the EC50AC's rated range at typical above ground pool plumbing resistance. This matters: pairing an undersized pump with a larger filter leaves filtration capacity on the table; pairing an oversized pump can over-pressure the filter and compress service intervals. The W3EC50C93S removes that guesswork.\u003c\/p\u003e\n\n  \u003ch2\u003eWhat Is Included\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eEC50AC PerFlex extended-cycle D.E. filter with clamp-band housing\u003c\/li\u003e\n    \u003cli\u003e1.5 HP PowerFlo Matrix above ground pool pump with industrial-size strainer basket\u003c\/li\u003e\n    \u003cli\u003eModular platform base\u003c\/li\u003e\n    \u003cli\u003eUnion connection\u003c\/li\u003e\n    \u003cli\u003eTwo 1.5\" x 6 ft filter hoses, hose adapters, and hose clamps\u003c\/li\u003e\n    \u003cli\u003ePressure gauge and manual air relief valve (installed on filter)\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cdiv class=\"note\"\u003eD.E. powder is not included. You will need pool-grade diatomaceous earth for the initial charge before placing the system in service. Do not use food-grade, pest-control, or industrial D.E. products.\u003c\/div\u003e\n\n  \u003ch2\u003eHayward PerFlex W3EC50C93S D.E. Filter System Specifications\u003c\/h2\u003e\n  \u003cdiv class=\"spec-list\"\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eSKU \/ Model\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eW3EC50C93S\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eFilter Model\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eEC50AC PerFlex extended-cycle D.E.\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eFilter Area\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e25 sq ft\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eFilter Type\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eExtended-cycle D.E. (Flex-Tube); bump-to-clean\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eFiltration Range\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e2 microns\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eBackwash Valve Required\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eNo\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003ePump Model\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003ePowerFlo Matrix 1.5 HP above ground pump\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003ePump Voltage\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e115V\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003ePool Application\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eAbove ground pools\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eSanitizer Compatibility\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eChlorine, bromine, ozone, salt water\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eDimensions (LxWxH)\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e26\" x 17\" x 33.75\"\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eOrigin\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003eMade in the USA\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-key\"\u003eWarranty\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e1 year\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eHayward PerFlex W3EC50C93S D.E. Filter System Frequently Asked Questions\u003c\/h2\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this for above ground or in-ground pools?\u003c\/summary\u003e\n    \u003cp\u003eAbove ground pools. The system includes a PowerFlo Matrix above ground pump and a modular platform base designed for above ground pool plumbing. It is not rated for in-ground pool use.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes D.E. powder come with the system?\u003c\/summary\u003e\n    \u003cp\u003eNo. You need to purchase pool-grade diatomaceous earth separately for the initial charge before the system can be placed in service. Use only pool-grade D.E.; do not use food-grade, pest-control, or construction-grade products. Pre-mix the powder into a slurry before adding it to the filter with the pump running.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I clean this filter?\u003c\/summary\u003e\n    \u003cp\u003eWhen operating pressure rises 10 to 12 PSI above the clean starting pressure, stop the pump and stroke the bump handle 8 times (down slowly, up briskly). The Flex-Tubes flex, shed the loaded D.E. cake, and immediately recoat. Restart the pump. No backwash, no fresh D.E., no disassembly. When bumping alone stops restoring pressure, drain the sump at the base of the filter housing. A full D.E. recharge is only needed when bumping and draining no longer restore acceptable pressure.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eCan the pump be replaced with a variable speed pump later?\u003c\/summary\u003e\n    \u003cp\u003eThe included single-speed PowerFlo Matrix pump can be replaced with a compatible above ground pump at any time. Confirm that the replacement pump's flow output at normal operating conditions stays within the EC50AC filter's rated flow range.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eD.E. is appearing in my pool. What does that mean?\u003c\/summary\u003e\n    \u003cp\u003eD.E. returning to the pool means one or more Flex-Tube elements has a hole or seam failure. Stop the pump immediately, drain and open the filter housing, and inspect each tube individually. Replace any tube with a visible breach before restarting.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdiv class=\"doc-links\" role=\"complementary\" aria-label=\"Hayward PerFlex W3EC50C93S D.E. Filter System Manual and Warranty Info\"\u003e\n    \u003ch2\u003eHayward PerFlex W3EC50C93S D.E. Filter System Manual and Warranty Info\u003c\/h2\u003e\n    \u003cul\u003e\n      \u003cli\u003e\u003ca href=\"\/docs\/hayward-perflex-w3ec40c15-system-owners-manual.pdf\" target=\"_blank\" rel=\"noopener\"\u003eHayward PerFlex W3EC50C93S - Owner's Manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n      \u003cli\u003e\u003ca href=\"\/docs\/hayward-perflex-w3ec40c15-parts-diagram.pdf\" target=\"_blank\" rel=\"noopener\"\u003eHayward PerFlex W3EC50C93S - Parts Diagram and Replacement Part Numbers (PDF)\u003c\/a\u003e\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\/\",\n    \"@type\": \"Product\",\n    \"name\": \"Hayward PerFlex D.E. Filter System with 1.5 HP PowerFlo Matrix Pump W3EC50C93S\",\n    \"brand\": {\n      \"@type\": \"https:\/\/schema.org\/Brand\",\n      \"name\": \"Hayward\"\n    },\n    \"sku\": \"W3EC50C93S\",\n    \"description\": \"Hayward W3EC50C93S PerFlex extended-cycle D.E. filter system for above ground pools. EC50AC 25 sq ft filter with clamp, 1.5 HP PowerFlo Matrix pump, modular platform base, union connection, and 1.5 inch hose package. Bump-to-clean; no backwash valve required. 2-micron filtration. Made in USA. 1 year warranty.\",\n    \"category\": \"Pool Filter\",\n    \"itemCondition\": \"https:\/\/schema.org\/NewCondition\",\n    \"offers\": {\n      \"@type\": \"Offer\",\n      \"price\": \"1189.00\",\n      \"priceCurrency\": \"USD\",\n      \"availability\": \"https:\/\/schema.org\/InStock\",\n      \"seller\": {\n        \"@type\": \"Organization\",\n        \"name\": \"NonStop Swim\"\n      },\n      \"shippingDetails\": {\n        \"@type\": \"OfferShippingDetails\",\n        \"shippingRate\": {\n          \"@type\": \"MonetaryAmount\",\n          \"value\": \"0\",\n          \"currency\": \"USD\"\n        },\n        \"shippingDestination\": {\n          \"@type\": \"DefinedRegion\",\n          \"addressCountry\": \"US\"\n        },\n        \"deliveryTime\": {\n          \"@type\": \"ShippingDeliveryTime\",\n          \"handlingTime\": {\n            \"@type\": \"QuantitativeValue\",\n            \"minValue\": 1,\n            \"maxValue\": 2,\n            \"unitCode\": \"DAY\"\n          },\n          \"transitTime\": {\n            \"@type\": \"QuantitativeValue\",\n            \"minValue\": 3,\n            \"maxValue\": 7,\n            \"unitCode\": \"DAY\"\n          }\n        }\n      },\n      \"hasMerchantReturnPolicy\": {\n        \"@type\": \"MerchantReturnPolicy\",\n        \"applicableCountry\": \"US\",\n        \"returnPolicyCategory\": \"https:\/\/schema.org\/MerchantReturnFiniteReturnWindow\",\n        \"merchantReturnDays\": 30,\n        \"returnMethod\": \"https:\/\/schema.org\/ReturnByMail\",\n        \"returnFees\": \"https:\/\/schema.org\/ReturnFeesCustomerResponsibility\",\n        \"restockingFee\": {\n          \"@type\": \"MonetaryAmount\",\n          \"value\": \"237.80\",\n          \"currency\": \"USD\"\n        }\n      }\n    }\n  }\n  \u003c\/script\u003e\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48560672604377,"sku":"W3EC50C93S","price":1189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/3592\/7513\/files\/Hayward-Perflex-System-Pump.jpg?v=1776915312"}],"url":"https:\/\/nonstopswim.com\/collections\/hayward-perflex-filters\/pool-size_up-to-10k-gallons.oembed","provider":"Nonstop Swim","version":"1.0","type":"link"}