{"product_id":"filbur-de-grid-for-pentair-hayward-partial-12-x-9-3-4-inch-24-sq-ft-oem-replacement-fc9420","title":"Filbur DE Grid For Pentair Hayward Partial 12 X 9 3\/4 Inch 24 Sq Ft OEM Replacement FC9420","description":"\u003cdiv\u003eThe Filbur FC-9420 Diatomaceous Earth (DE) Grid is a partial-grid replacement designed specifically for Pentair and Hayward DE pool filters. Measuring 12\" x 9-3\/4\" with a 24 sq ft filtration area, this grid delivers dependable DE distribution and sturdy support where it matters most—keeping your pool water clear and easier to maintain. Why this DE grid stands out\n- Robust, extruded PVC center core: The strongest possible backbone for even stress distribution and reliable debris loading, helping prevent grid collapse during heavy filtration cycles.\n- Reinforced, antimicrobial end caps: Treated to resist odor-causing bacteria and mold, with integrated fittings to simplify installation and reduce the need for adapters that can impede flow.\n- Wider break-resistant bands: Designed to keep pleats evenly spaced, minimize flutter in demanding pump setups, and maintain optimum flow across the grid.\n- Precise compatibility for easy replacement: Embossed part numbers and exact sizing ensure a straightforward swap for Pentair\/Hayward DE systems without guesswork.\n- Superior DE distribution and cleaning efficiency: The grid’s structure supports uniform DE layering, which improves filtration performance and makes backwashing more effective. Ideal use scenarios\n- Replacing worn or warped DE grids in mid-to-high-use residential pools or light commercial setups that rely on Pentair or Hayward DE filters.\n- Upgrading aging grids to improve water clarity, reduce debris bypass, and extend the life of downstream filter components.\n- Maintaining regular DE filter performance in pools with variable chlorine or saltwater chemistry due to the grid’s robust construction. What problems this grid solves\n- Avoids premature grid failure under load thanks to reinforced cores and heavy-duty bands.\n- Simplifies installation with molded-in fittings, reducing setup time and potential flow-reducing adapters.\n- Improves filtration efficiency by ensuring consistent DE distribution and minimizing buildup from bridging or flutter. How to get the best results\n- Confirm exact fit: Match the 12\" x 9-3\/4\" partial-grid format and 24 sq ft coverage to your current Pentair\/Hayward DE filter housing.\n- Handle with care during installation to preserve the integrity of the reinforced center cores and end caps.\n- Pair with a regular DE maintenance routine: backwash on schedule, inspect for signs of wear, and replace the grid at the first sign of cracks or warped sections to maintain peak clarity. Filbur delivers value-driven, OEM-grade filtration components, and the FC-9420 DE grid continues that tradition with durability, reliability, and precise performance—ensuring your pool stays sparkling clean with less hassle and downtime.\u003c\/div\u003e","brand":"Filbur Manufacturing","offers":[{"title":"Default Title","offer_id":40241552064554,"sku":"FC-9420","price":21.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/4014\/1354\/products\/14-176-1025_xl.jpg?v=1769976123","url":"https:\/\/bathparts.com\/en-um\/products\/filbur-de-grid-for-pentair-hayward-partial-12-x-9-3-4-inch-24-sq-ft-oem-replacement-fc9420","provider":"Bath \u0026 Spa Superstore","version":"1.0","type":"link"}