{"product_id":"hayward-perflex-d-e-pool-filter-system-4-lb-1-hp-pump","title":"Hayward Perflex D.E. Above Ground Pool Filter System 4 lb 1 HP Pump","description":"\u003c!-- more --\u003e\n\u003cstyle\u003e\n  .product-description { color: inherit; line-height: 1.75; max-width: 860px; }\n  .product-description h2 { font-size: 1.2rem; font-weight: 700; margin: 2rem 0 0.6rem; border-bottom: 2px solid #cce0ff; padding-bottom: 0.3rem; }\n  .product-description h3 { font-size: 1rem; font-weight: 700; margin: 1.5rem 0 0.4rem; }\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 { margin: 1rem 0 1.5rem; font-size: 0.95rem; border: 1px solid #c4d9f0; border-radius: 4px; overflow: hidden; }\n  .product-description .spec-row { display: flex; flex-wrap: wrap; border-bottom: 1px solid #c4d9f0; }\n  .product-description .spec-row:last-child { border-bottom: none; }\n  .product-description .spec-key { flex: 0 0 38%; background-color: #e8f1fb; font-weight: 700; padding: 0.5rem 0.75rem; box-sizing: border-box; }\n  .product-description .spec-val { flex: 1 1 62%; padding: 0.5rem 0.75rem; box-sizing: border-box; }\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, .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 .doc-links { background-color: #f0f6ff; border-left: 4px solid #0066cc; padding: 0.75rem 1rem; margin: 1.5rem 0; border-radius: 0 4px 4px 0; }\n  .product-description .doc-links h2 { border-bottom: none; margin: 0 0 0.4rem; font-size: 1rem; padding-bottom: 0; }\n  .product-description .doc-links ul { margin: 0 0 0 1.2rem; }\n  .product-description .mc-table-wrapper { margin: 1rem 0 1.5rem; }\n  .product-description .mc-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; table-layout: fixed; }\n  .product-description .mc-table th { background-color: #00569c !important; color: #ffffff !important; text-align: left; padding: 0.55rem 0.75rem; font-weight: 600; }\n  .product-description .mc-table td { padding: 0.5rem 0.75rem; border-bottom: 1px solid #c4d9f0; color: #3e5468; vertical-align: top; word-wrap: break-word; }\n  .product-description .mc-table tr:nth-child(even) td { background-color: #f5f9ff; }\n  .product-description .mc-table td.td-cur { font-weight: 700; color: #003f72; }\n  .product-description .mc-table.ig-table th:nth-child(1), .product-description .mc-table.ig-table td:nth-child(1) { width: 46%; }\n  .product-description .mc-table.ig-table th:nth-child(2), .product-description .mc-table.ig-table td:nth-child(2) { width: 18%; }\n  .product-description .mc-table.ig-table th:nth-child(3), .product-description .mc-table.ig-table td:nth-child(3) { width: 18%; }\n  .product-description .mc-table.ig-table th:nth-child(4), .product-description .mc-table.ig-table td:nth-child(4) { width: 18%; }\n  .product-description .mc-table.ag-table th:nth-child(1), .product-description .mc-table.ag-table td:nth-child(1) { width: 40%; }\n  .product-description .mc-table.ag-table th:nth-child(2), .product-description .mc-table.ag-table td:nth-child(2) { width: 15%; }\n  .product-description .mc-table.ag-table th:nth-child(3), .product-description .mc-table.ag-table td:nth-child(3) { width: 15%; }\n  .product-description .mc-table.ag-table th:nth-child(4), .product-description .mc-table.ag-table td:nth-child(4) { width: 15%; }\n  .product-description .mc-table.ag-table th:nth-child(5), .product-description .mc-table.ag-table td:nth-child(5) { width: 15%; }\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. Pool Filter System 4 lb 1 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\"\u003e\n\n  \u003cp itemprop=\"description\"\u003eThe Hayward Perflex W3EC40C92S is a 20 sq ft extended-cycle D.E. filter system for above-ground pools with a factory-matched 1 HP PowerFlo Matrix pump. Flex-Tube bump-to-clean design, 4 lbs D.E. capacity, 40 GPM, 2-micron filtration. No backwash required. 1 year warranty.\u003c\/p\u003e\n\n  \u003ch2\u003eHayward Perflex W3EC40C92S D.E. Filter System: 20 Sq Ft Filter and 1 HP Pump for Above-Ground Pools\u003c\/h2\u003e\n\n  \u003cp\u003eThe W3EC40C92S pairs the Perflex 20 sq ft Flex-Tube D.E. filter with a factory-matched 1 HP PowerFlo Matrix above-ground pump. Everything ships together as a pre-engineered system — no separate pump selection or compatibility research needed. The filter delivers 2-micron D.E. filtration without backwashing; the bump handle cleans the Flex-Tubes and redistributes the existing D.E. charge without discharging media or wasting pool water.\u003c\/p\u003e\n\n  \u003cp\u003eIf you already have a compatible above-ground pump, the \u003ca href=\"https:\/\/nonstopswim.com\/products\/hayward-perflex-d-e-pool-filter-with-clamp-4-lb\"\u003eW3EC40AC filter-only\u003c\/a\u003e is available separately. For more filter capacity, the \u003ca href=\"https:\/\/nonstopswim.com\/products\/hayward-perflex-d-e-pool-filter-system-5-lb-1-5-hp-pump\"\u003eW3EC50C93S (25 sq ft, 1.5 HP)\u003c\/a\u003e is the step up.\u003c\/p\u003e\n\n  \u003ch2\u003eHayward W3EC40C92S Perflex D.E. Filter System Key Features\u003c\/h2\u003e\n\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFactory-matched 1 HP PowerFlo Matrix pump\u003c\/strong\u003e - Pre-paired to the 20 sq ft filter's 40 GPM flow ceiling for above-ground pool plumbing. Oversized basket, clear strainer cover, thermal overload protection.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePatented Flex-Tube design\u003c\/strong\u003e - Bump-to-clean mechanism reuses D.E. powder rather than flushing it. No backwash valve, no drain line, no fresh D.E. after most cleaning cycles.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e2-micron filtration\u003c\/strong\u003e - Finer particle capture than sand or cartridge filtration, removing dust, pollen, and algae spores on the first pass through the filter.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eClamp assembly\u003c\/strong\u003e - Quick access to the filter interior for D.E. recharge, Flex-Tube inspection, and servicing without tools.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSelf-venting design\u003c\/strong\u003e - Automatically expels air through the filtered water returning to the pool.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIntegral check valve\u003c\/strong\u003e - Prevents system backflow whenever the pump is off.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHeavy-duty glass-filled PPL tank\u003c\/strong\u003e - Corrosion-free construction for outdoor above-ground installations.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eHayward W3EC40C92S Perflex 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\"\u003eD.E. Filter and Pump Combo (above-ground)\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\"\u003e20 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\"\u003e4 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\"\u003e40 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\"\u003ePump\u003c\/div\u003e\n\u003cdiv class=\"spec-val\"\u003e1 HP PowerFlo Matrix single-speed above-ground pump\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\"\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\"\u003eAbove-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\n  \u003ch2\u003eHayward Perflex D.E. Filter Lineup\u003c\/h2\u003e\n\n  \u003ch3\u003eAbove-Ground Perflex D.E. Filters\u003c\/h3\u003e\n\n  \u003cdiv class=\"mc-table-wrapper\"\u003e\n    \u003ctable class=\"mc-table ag-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eFilter Area\u003c\/th\u003e\n\u003cth\u003eD.E. Charge\u003c\/th\u003e\n\u003cth\u003eFlow Rate\u003c\/th\u003e\n\u003cth\u003ePump\u003c\/th\u003e\n\u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003ca href=\"https:\/\/nonstopswim.com\/products\/hayward-perflex-d-e-pool-filter-with-clamp-4-lb\"\u003eHayward Perflex D.E. Filter with Clamp 4 lb\u003c\/a\u003e\u003c\/td\u003e\n          \u003ctd\u003e20 sq ft\u003c\/td\u003e\n\u003ctd\u003e4 lbs\u003c\/td\u003e\n\u003ctd\u003e40 GPM\u003c\/td\u003e\n\u003ctd\u003eFilter only\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd class=\"td-cur\"\u003eHayward Perflex D.E. Filter System 4 lb 1 HP Pump (this model)\u003c\/td\u003e\n          \u003ctd class=\"td-cur\"\u003e20 sq ft\u003c\/td\u003e\n\u003ctd class=\"td-cur\"\u003e4 lbs\u003c\/td\u003e\n\u003ctd class=\"td-cur\"\u003e40 GPM\u003c\/td\u003e\n\u003ctd class=\"td-cur\"\u003e1 HP PowerFlo Matrix\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003ca href=\"https:\/\/nonstopswim.com\/products\/hayward-perflex-d-e-pool-filter-with-clamp-5-lb\"\u003eHayward Perflex D.E. Filter with Clamp 5 lb\u003c\/a\u003e\u003c\/td\u003e\n          \u003ctd\u003e25 sq ft\u003c\/td\u003e\n\u003ctd\u003e5 lbs\u003c\/td\u003e\n\u003ctd\u003e50 GPM\u003c\/td\u003e\n\u003ctd\u003eFilter only\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003ca href=\"https:\/\/nonstopswim.com\/products\/hayward-perflex-d-e-pool-filter-system-5-lb-1-5-hp-pump\"\u003eHayward Perflex D.E. Filter System 5 lb 1.5 HP Pump\u003c\/a\u003e\u003c\/td\u003e\n          \u003ctd\u003e25 sq ft\u003c\/td\u003e\n\u003ctd\u003e5 lbs\u003c\/td\u003e\n\u003ctd\u003e50 GPM\u003c\/td\u003e\n\u003ctd\u003e1.5 HP PowerFlo Matrix\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eIn-Ground Perflex D.E. Filters\u003c\/h3\u003e\n\n  \u003cdiv class=\"mc-table-wrapper\"\u003e\n    \u003ctable class=\"mc-table ig-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eFilter Area\u003c\/th\u003e\n\u003cth\u003eD.E. Charge\u003c\/th\u003e\n\u003cth\u003eFlow Rate\u003c\/th\u003e\n\u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003ca href=\"https:\/\/nonstopswim.com\/products\/hayward-perflex-extended-cycle-d-e-inground-pool-filter-6-lb\"\u003eHayward PerFlex 27 Sq Ft D.E. Filter\u003c\/a\u003e\u003c\/td\u003e\n          \u003ctd\u003e27 sq ft\u003c\/td\u003e\n\u003ctd\u003e6 lbs\u003c\/td\u003e\n\u003ctd\u003e67 GPM\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003ca href=\"https:\/\/nonstopswim.com\/products\/hayward-perflex-extended-cycle-d-e-inground-pool-filter-7-lb\"\u003eHayward PerFlex 40 Sq Ft D.E. Filter\u003c\/a\u003e\u003c\/td\u003e\n          \u003ctd\u003e40 sq ft\u003c\/td\u003e\n\u003ctd\u003e7 lbs\u003c\/td\u003e\n\u003ctd\u003e80 GPM\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eHayward W3EC40C92S Perflex D.E. Filter System Frequently Asked Questions\u003c\/h2\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the difference between the W3EC40C92S and the W3EC40AC?\u003c\/summary\u003e\n    \u003cp\u003eSame filter. The \u003ca href=\"https:\/\/nonstopswim.com\/products\/hayward-perflex-d-e-pool-filter-with-clamp-4-lb\"\u003eW3EC40AC\u003c\/a\u003e is the filter only — no pump included. The W3EC40C92S adds a factory-matched 1 HP PowerFlo Matrix above-ground pump. Choose the W3EC40AC if you already have a compatible pump; choose the W3EC40C92S if you need the complete system.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes D.E. powder come included?\u003c\/summary\u003e\n    \u003cp\u003eNo. 4 lbs of pool-grade D.E. must be purchased separately. Add it through the skimmer with the pump running after initial setup. Do not use food-grade or pest-control D.E.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this system suitable for in-ground pools?\u003c\/summary\u003e\n    \u003cp\u003eNo. The PowerFlo Matrix pump is an above-ground pump designed for the higher resistance of hose-based plumbing. For in-ground applications, see the \u003ca href=\"https:\/\/nonstopswim.com\/products\/hayward-perflex-extended-cycle-d-e-inground-pool-filter-6-lb\"\u003eW3EC65A\u003c\/a\u003e or \u003ca href=\"https:\/\/nonstopswim.com\/products\/hayward-perflex-extended-cycle-d-e-inground-pool-filter-7-lb\"\u003eW3EC75A\u003c\/a\u003e.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003cdiv class=\"doc-links\" role=\"complementary\" aria-label=\"Hayward Perflex W3EC40C92S D.E. Filter System Manual\"\u003e\n    \u003ch2\u003eHayward Perflex W3EC40C92S D.E. Filter System Manual and Warranty Info\u003c\/h2\u003e\n    \u003cul\u003e\n      \u003cli\u003e\u003ca href=\"\/docs\/hayward-perflex-ec40ac-owners-manual.pdf\" rel=\"noopener\" target=\"_blank\"\u003eHayward Perflex W3EC40C92S - Owner's Manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n      \u003cli\u003e\u003ca href=\"\/docs\/hayward-perflex-ec40ac-parts-diagram.pdf\" rel=\"noopener\" target=\"_blank\"\u003eHayward Perflex W3EC40C92S - Parts Diagram and Replacement Part Numbers (PDF)\u003c\/a\u003e\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\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. 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