{"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. 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