{"product_id":"haywardprogrid48sqftdefilterw3de4820hppw3de4820","title":"Hayward Pro-Grid 48 sq. ft. DE Filter | W3DE4820","description":"\u003ch2 data-section-id=\"1p927wt\" data-start=\"323\" data-end=\"342\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp data-start=\"344\" data-end=\"651\"\u003eThe \u003cstrong data-start=\"348\" data-end=\"398\"\u003eHayward Pro-Grid 48 sq. ft. DE Filter W3DE4820\u003c\/strong\u003e is built for exceptional water clarity, efficient flow, and dependable filtration performance for in-ground pools and spas. Using diatomaceous earth filtration, this vertical grid filter helps capture very fine particles for sparkling clean pool water.\u003c\/p\u003e\n\u003cp data-start=\"653\" data-end=\"973\"\u003eThe Pro-Grid series combines durable glass-reinforced co-polymer construction with a service-friendly vertical grid design. Its high-impact grid elements support up-flow filtration and top-down backwashing, while the heavy-duty one-piece flange clamp allows access to internal components without disturbing the plumbing.\u003c\/p\u003e\n\u003cp data-start=\"975\" data-end=\"1115\"\u003e\u003cstrong data-start=\"975\" data-end=\"989\"\u003eImportant:\u003c\/strong\u003e This model does \u003cstrong data-start=\"1006\" data-end=\"1013\"\u003enot\u003c\/strong\u003e include a backwash valve. A compatible Hayward multiport or slide valve must be purchased separately.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1vdrhtn\" data-start=\"1117\" data-end=\"1129\"\u003eIdeal For\u003c\/h2\u003e\n\u003cp data-start=\"1131\" data-end=\"1449\"\u003eResidential in-ground swimming pools\u003cbr data-start=\"1167\" data-end=\"1170\"\u003eIn-ground spas and pool\/spa combinations\u003cbr data-start=\"1210\" data-end=\"1213\"\u003eLarge residential pool systems requiring DE filtration\u003cbr data-start=\"1267\" data-end=\"1270\"\u003eCustomers looking for superior fine-particle water clarity\u003cbr data-start=\"1328\" data-end=\"1331\"\u003eReplacement for Hayward DE4820 \/ W3DE4820 filter systems\u003cbr data-start=\"1387\" data-end=\"1390\"\u003ePool owners upgrading from sand or smaller filter systems\u003c\/p\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"1451\" data-end=\"1466\"\u003eKey Features\u003c\/h2\u003e\n\u003ch3 data-section-id=\"13t7nqs\" data-start=\"1468\" data-end=\"1501\"\u003e48 sq. ft. DE Filtration Area\u003c\/h3\u003e\n\u003cp data-start=\"1503\" data-end=\"1651\"\u003eThe 48 square foot effective filtration area provides strong dirt-holding capacity and excellent water clarity for residential pool and spa systems.\u003c\/p\u003e\n\u003ch3 data-section-id=\"186frpb\" data-start=\"1653\" data-end=\"1682\"\u003eSuperior DE Water Clarity\u003c\/h3\u003e\n\u003cp data-start=\"1684\" data-end=\"1837\"\u003eDiatomaceous earth filtration helps capture fine particles that can pass through many standard filtration systems, producing cleaner, clearer pool water.\u003c\/p\u003e\n\u003ch3 data-section-id=\"ivplmo\" data-start=\"1839\" data-end=\"1883\"\u003eDurable Glass-Reinforced Co-Polymer Tank\u003c\/h3\u003e\n\u003cp data-start=\"1885\" data-end=\"2020\"\u003eThe filter tank is built from durable glass-reinforced co-polymer material designed to withstand demanding pool equipment environments.\u003c\/p\u003e\n\u003ch3 data-section-id=\"q2n85c\" data-start=\"2022\" data-end=\"2060\"\u003eHigh-Impact Vertical Grid Elements\u003c\/h3\u003e\n\u003cp data-start=\"2062\" data-end=\"2204\"\u003eThe internal grid elements are designed for up-flow filtration and top-down backwashing, supporting efficient performance and easier cleaning.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1chvnkt\" data-start=\"2206\" data-end=\"2241\"\u003eRapid-Release Manual Air Relief\u003c\/h3\u003e\n\u003cp data-start=\"2243\" data-end=\"2350\"\u003eA high-capacity manual air relief valve helps release trapped air quickly with a simple quarter-turn lever.\u003c\/p\u003e\n\u003ch3 data-section-id=\"10t41up\" data-start=\"2352\" data-end=\"2378\"\u003eOne-Piece Flange Clamp\u003c\/h3\u003e\n\u003cp data-start=\"2380\" data-end=\"2526\"\u003eThe heavy-duty, tamper-proof flange clamp securely fastens the tank top and bottom while allowing quick access to internal components for service.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1068xeh\" data-start=\"2528\" data-end=\"2556\"\u003eSelf-Aligned Tank Design\u003c\/h3\u003e\n\u003cp data-start=\"2558\" data-end=\"2685\"\u003eThe tank top and bottom are designed to align easily, making access to the grid elements faster and simpler during maintenance.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1vxx3yz\" data-start=\"2687\" data-end=\"2721\"\u003e2\" Full-Flow Internal Plumbing\u003c\/h3\u003e\n\u003cp data-start=\"2723\" data-end=\"2838\"\u003eFull-flow internal piping helps reduce resistance and supports strong, efficient water movement through the filter.\u003c\/p\u003e\n\u003ch3 data-section-id=\"yj2yj7\" data-start=\"2840\" data-end=\"2861\"\u003eValve Flexibility\u003c\/h3\u003e\n\u003cp data-start=\"2863\" data-end=\"3011\"\u003eThe filter can be paired with compatible Hayward multiport or slide valves depending on the pool system’s plumbing size and installation preference.\u003c\/p\u003e\n\u003ch2 data-section-id=\"2qq1z5\" data-start=\"3013\" data-end=\"3024\"\u003eBenefits\u003c\/h2\u003e\n\u003cp data-start=\"3026\" data-end=\"3309\"\u003eThe Hayward W3DE4820 is a strong choice for pool owners who want premium DE filtration with reliable construction and straightforward service access. DE filters are commonly chosen for their ability to deliver excellent water clarity by capturing fine debris and suspended particles.\u003c\/p\u003e\n\u003cp data-start=\"3311\" data-end=\"3561\"\u003eWith its 48 sq. ft. filtration area, 6 lb DE charge, 120 GPM residential design flow rate, and reinforced tank construction, this model is well suited for larger in-ground pool and spa systems when properly matched with the pump, plumbing, and valve.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"3563\" data-end=\"3580\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"3582\" data-end=\"4439\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"3582\" data-end=\"3609\"\u003e\n\u003ctr data-start=\"3582\" data-end=\"3609\"\u003e\n\u003cth data-start=\"3582\" data-end=\"3598\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-start=\"3598\" data-end=\"3609\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"3620\" data-end=\"4439\"\u003e\n\u003ctr data-start=\"3620\" data-end=\"3639\"\u003e\n\u003ctd data-start=\"3620\" data-end=\"3628\" data-col-size=\"sm\"\u003eBrand\u003c\/td\u003e\n\u003ctd data-start=\"3628\" data-end=\"3639\" data-col-size=\"sm\"\u003eHayward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3640\" data-end=\"3661\"\u003e\n\u003ctd data-start=\"3640\" data-end=\"3649\" data-col-size=\"sm\"\u003eSeries\u003c\/td\u003e\n\u003ctd data-start=\"3649\" data-end=\"3661\" data-col-size=\"sm\"\u003ePro-Grid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3662\" data-end=\"3682\"\u003e\n\u003ctd data-start=\"3662\" data-end=\"3670\" data-col-size=\"sm\"\u003eModel\u003c\/td\u003e\n\u003ctd data-start=\"3670\" data-end=\"3682\" data-col-size=\"sm\"\u003eW3DE4820\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3683\" data-end=\"3701\"\u003e\n\u003ctd data-start=\"3683\" data-end=\"3689\" data-col-size=\"sm\"\u003eSKU\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3689\" data-end=\"3701\"\u003eW3DE4820\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3702\" data-end=\"3734\"\u003e\n\u003ctd data-start=\"3702\" data-end=\"3718\" data-col-size=\"sm\"\u003eUPC \/ Barcode\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3718\" data-end=\"3734\"\u003e610377387880\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3735\" data-end=\"3776\"\u003e\n\u003ctd data-start=\"3735\" data-end=\"3749\" data-col-size=\"sm\"\u003eFilter Type\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3749\" data-end=\"3776\"\u003eDE \/ Diatomaceous Earth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3777\" data-end=\"3819\"\u003e\n\u003ctd data-start=\"3777\" data-end=\"3805\" data-col-size=\"sm\"\u003eEffective Filtration Area\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3805\" data-end=\"3819\"\u003e48 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3820\" data-end=\"3844\"\u003e\n\u003ctd data-start=\"3820\" data-end=\"3834\" data-col-size=\"sm\"\u003eDE Required\u003c\/td\u003e\n\u003ctd data-start=\"3834\" data-end=\"3844\" data-col-size=\"sm\"\u003e6 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3845\" data-end=\"3868\"\u003e\n\u003ctd data-start=\"3845\" data-end=\"3862\" data-col-size=\"sm\"\u003eValve Included\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3862\" data-end=\"3868\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3869\" data-end=\"3919\"\u003e\n\u003ctd data-start=\"3869\" data-end=\"3895\" data-col-size=\"sm\"\u003eBackwash Valve Required\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3895\" data-end=\"3919\"\u003eYes, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3920\" data-end=\"3962\"\u003e\n\u003ctd data-start=\"3920\" data-end=\"3951\" data-col-size=\"sm\"\u003eResidential Design Flow Rate\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3951\" data-end=\"3962\"\u003e120 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3963\" data-end=\"3999\"\u003e\n\u003ctd data-start=\"3963\" data-end=\"3989\" data-col-size=\"sm\"\u003ePublic Design Flow Rate\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3989\" data-end=\"3999\"\u003e96 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4000\" data-end=\"4034\"\u003e\n\u003ctd data-start=\"4000\" data-end=\"4028\" data-col-size=\"sm\"\u003eNumber of Filter Elements\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"4028\" data-end=\"4034\"\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4035\" data-end=\"4082\"\u003e\n\u003ctd data-start=\"4035\" data-end=\"4051\" data-col-size=\"sm\"\u003eTank Material\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"4051\" data-end=\"4082\"\u003eGlass-reinforced co-polymer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4083\" data-end=\"4119\"\u003e\n\u003ctd data-start=\"4083\" data-end=\"4103\" data-col-size=\"sm\"\u003eInternal Plumbing\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"4103\" data-end=\"4119\"\u003e2\" full-flow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4120\" data-end=\"4168\"\u003e\n\u003ctd data-start=\"4120\" data-end=\"4141\" data-col-size=\"sm\"\u003eProduct Dimensions\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"4141\" data-end=\"4168\"\u003e40.5\" H x 24\" L x 24\" W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4169\" data-end=\"4195\"\u003e\n\u003ctd data-start=\"4169\" data-end=\"4186\" data-col-size=\"sm\"\u003eProduct Height\u003c\/td\u003e\n\u003ctd data-start=\"4186\" data-end=\"4195\" data-col-size=\"sm\"\u003e40.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4196\" data-end=\"4220\"\u003e\n\u003ctd data-start=\"4196\" data-end=\"4213\" data-col-size=\"sm\"\u003eProduct Length\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"4213\" data-end=\"4220\"\u003e24\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4221\" data-end=\"4244\"\u003e\n\u003ctd data-start=\"4221\" data-end=\"4237\" data-col-size=\"sm\"\u003eProduct Width\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"4237\" data-end=\"4244\"\u003e24\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4245\" data-end=\"4273\"\u003e\n\u003ctd data-start=\"4245\" data-end=\"4262\" data-col-size=\"sm\"\u003eProduct Weight\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"4262\" data-end=\"4273\"\u003e74 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4274\" data-end=\"4303\"\u003e\n\u003ctd data-start=\"4274\" data-end=\"4292\" data-col-size=\"sm\"\u003eShipping Weight\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"4292\" data-end=\"4303\"\u003e75 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4304\" data-end=\"4329\"\u003e\n\u003ctd data-start=\"4304\" data-end=\"4316\" data-col-size=\"sm\"\u003ePool Type\u003c\/td\u003e\n\u003ctd data-start=\"4316\" data-end=\"4329\" data-col-size=\"sm\"\u003eIn-ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4330\" data-end=\"4362\"\u003e\n\u003ctd data-start=\"4330\" data-end=\"4356\" data-col-size=\"sm\"\u003ePressure Gauge Included\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"4356\" data-end=\"4362\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4363\" data-end=\"4383\"\u003e\n\u003ctd data-start=\"4363\" data-end=\"4377\" data-col-size=\"sm\"\u003eDE Included\u003c\/td\u003e\n\u003ctd data-start=\"4377\" data-end=\"4383\" data-col-size=\"sm\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4384\" data-end=\"4439\"\u003e\n\u003ctd data-start=\"4384\" data-end=\"4401\" data-col-size=\"sm\"\u003eParts Warranty\u003c\/td\u003e\n\u003ctd data-start=\"4401\" data-end=\"4439\" data-col-size=\"sm\"\u003e1-Year Manufacturer Parts Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 data-section-id=\"1cw2qvv\" data-start=\"4441\" data-end=\"4468\"\u003eCompatible Valve Options\u003c\/h2\u003e\n\u003cp data-start=\"4470\" data-end=\"4566\"\u003eCompatible valve selection depends on the pool system plumbing size and installation preference.\u003c\/p\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"4568\" data-end=\"4796\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"4568\" data-end=\"4609\"\u003e\n\u003ctr data-start=\"4568\" data-end=\"4609\"\u003e\n\u003cth data-start=\"4568\" data-end=\"4581\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eValve Type\u003c\/th\u003e\n\u003cth data-start=\"4581\" data-end=\"4609\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eCommon Compatible Option\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"4620\" data-end=\"4796\"\u003e\n\u003ctr data-start=\"4620\" data-end=\"4667\"\u003e\n\u003ctd data-start=\"4620\" data-end=\"4645\" data-col-size=\"sm\"\u003e1-1\/2\" Multiport Valve\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"4645\" data-end=\"4667\"\u003eHayward SP0710XR50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4668\" data-end=\"4711\"\u003e\n\u003ctd data-start=\"4668\" data-end=\"4689\" data-col-size=\"sm\"\u003e2\" Multiport Valve\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"4689\" data-end=\"4711\"\u003eHayward SP0715XR50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4712\" data-end=\"4752\"\u003e\n\u003ctd data-start=\"4712\" data-end=\"4729\" data-col-size=\"sm\"\u003e2\" Slide Valve\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"4729\" data-end=\"4752\"\u003eHayward SP0410X502S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4753\" data-end=\"4796\"\u003e\n\u003ctd data-start=\"4753\" data-end=\"4776\" data-col-size=\"sm\"\u003e2\" Selecta-Flo Valve\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"4776\" data-end=\"4796\"\u003eHayward SP0740DE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 data-section-id=\"xydb7h\" data-start=\"4798\" data-end=\"4816\"\u003eWhat’s Included\u003c\/h2\u003e\n\u003cp data-start=\"4818\" data-end=\"5016\"\u003eHayward W3DE4820 Pro-Grid 48 sq. ft. DE filter tank\u003cbr data-start=\"4869\" data-end=\"4872\"\u003eInternal vertical grid assembly\u003cbr data-start=\"4903\" data-end=\"4906\"\u003eOne-piece flange clamp system\u003cbr data-start=\"4935\" data-end=\"4938\"\u003eManual air relief assembly\u003cbr data-start=\"4964\" data-end=\"4967\"\u003eIntegral lift handles\u003cbr data-start=\"4988\" data-end=\"4991\"\u003eLow-profile filter base\u003c\/p\u003e\n\u003cp data-start=\"5018\" data-end=\"5171\"\u003e\u003cstrong data-start=\"5018\" data-end=\"5053\"\u003eBackwash valve is not included.\u003c\/strong\u003e\u003cbr data-start=\"5053\" data-end=\"5056\"\u003e\u003cstrong data-start=\"5056\" data-end=\"5097\"\u003ePool-grade DE powder is not included.\u003c\/strong\u003e\u003cbr data-start=\"5097\" data-end=\"5100\"\u003e\u003cstrong data-start=\"5100\" data-end=\"5171\"\u003ePressure gauge is listed by Hayward as not included for this model.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"px9lge\" data-start=\"5173\" data-end=\"5195\"\u003eCustomer-Facing Q\u0026amp;A\u003c\/h2\u003e\n\u003ch3 data-section-id=\"r1b11l\" data-start=\"5197\" data-end=\"5245\"\u003eDoes this filter include the backwash valve?\u003c\/h3\u003e\n\u003cp data-start=\"5247\" data-end=\"5386\"\u003eNo. The Hayward W3DE4820 does \u003cstrong data-start=\"5277\" data-end=\"5284\"\u003enot\u003c\/strong\u003e include a backwash valve. A compatible Hayward multiport or slide valve must be purchased separately.\u003c\/p\u003e\n\u003ch3 data-section-id=\"axzlau\" data-start=\"5388\" data-end=\"5436\"\u003eHow much DE powder does this filter require?\u003c\/h3\u003e\n\u003cp data-start=\"5438\" data-end=\"5537\"\u003eThis filter requires \u003cstrong data-start=\"5459\" data-end=\"5502\"\u003e6 lbs. of pool-grade diatomaceous earth\u003c\/strong\u003e after a full cleaning or recharge.\u003c\/p\u003e\n\u003ch3 data-section-id=\"yyj7dt\" data-start=\"5539\" data-end=\"5565\"\u003eIs DE powder included?\u003c\/h3\u003e\n\u003cp data-start=\"5567\" data-end=\"5610\"\u003eNo. DE powder must be purchased separately.\u003c\/p\u003e\n\u003ch3 data-section-id=\"8bgy4g\" data-start=\"5612\" data-end=\"5638\"\u003eWhat is the flow rate?\u003c\/h3\u003e\n\u003cp data-start=\"5640\" data-end=\"5749\"\u003eThe Hayward W3DE4820 has a \u003cstrong data-start=\"5667\" data-end=\"5707\"\u003e120 GPM residential design flow rate\u003c\/strong\u003e and a \u003cstrong data-start=\"5714\" data-end=\"5748\"\u003e96 GPM public design flow rate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1911xul\" data-start=\"5751\" data-end=\"5782\"\u003eIs this a cartridge filter?\u003c\/h3\u003e\n\u003cp data-start=\"5784\" data-end=\"5874\"\u003eNo. This is a \u003cstrong data-start=\"5798\" data-end=\"5811\"\u003eDE filter\u003c\/strong\u003e. It uses internal grids coated with diatomaceous earth powder.\u003c\/p\u003e\n\u003ch3 data-section-id=\"aawxgc\" data-start=\"5876\" data-end=\"5902\"\u003eIs this a sand filter?\u003c\/h3\u003e\n\u003cp data-start=\"5904\" data-end=\"5977\"\u003eNo. This filter does not use sand. It uses DE powder as the filter media.\u003c\/p\u003e\n\u003ch3 data-section-id=\"18oiq1l\" data-start=\"5979\" data-end=\"6020\"\u003eWhat type of pool is this filter for?\u003c\/h3\u003e\n\u003cp data-start=\"6022\" data-end=\"6089\"\u003eThis model is designed for \u003cstrong data-start=\"6049\" data-end=\"6088\"\u003ein-ground pool and spa applications\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1katt6b\" data-start=\"6091\" data-end=\"6121\"\u003eHow many grids are inside?\u003c\/h3\u003e\n\u003cp data-start=\"6123\" data-end=\"6176\"\u003eHayward lists this model with \u003cstrong data-start=\"6153\" data-end=\"6175\"\u003e10 filter elements\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1ovnj7v\" data-start=\"6178\" data-end=\"6224\"\u003eDoes this filter include a pressure gauge?\u003c\/h3\u003e\n\u003cp data-start=\"6226\" data-end=\"6288\"\u003eHayward lists the W3DE4820 as \u003cstrong data-start=\"6256\" data-end=\"6287\"\u003epressure gauge not included\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1f6dqmp\" data-start=\"6290\" data-end=\"6321\"\u003eHow is this filter cleaned?\u003c\/h3\u003e\n\u003cp data-start=\"6323\" data-end=\"6492\"\u003eThe filter is cleaned by backwashing through a compatible backwash valve. For deeper maintenance, the tank can be opened and the grid assembly can be removed and rinsed.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":52762732888374,"sku":"HPPW3DE4820 -H","price":1559.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/image_56a8cdeb-e2c6-4d0e-9f39-668973e762a5.png?v=1771909584","url":"https:\/\/poolsupplydepot.net\/products\/haywardprogrid48sqftdefilterw3de4820hppw3de4820","provider":"Pool Supply Depot","version":"1.0","type":"link"}