{"product_id":"c-8409-unicel-hayward-c900-90-sq-ft-cartridge-cx900re","title":"C-8409 | Unicel Hayward C900 90 Sq. Ft. Cartridge | CX900RE","description":"\u003cp data-start=\"178\" data-end=\"825\"\u003eThe \u003cstrong data-start=\"208\" data-end=\"242\"\u003eUnicel C-8409 Cartridge Filter\u003c\/strong\u003e is a 90 square foot replacement specifically designed for the Hayward Star-Clear Plus C900 filter. Serving as a direct replacement for the Hayward CX900RE cartridge, it delivers exceptional debris capture and consistent water clarity. Constructed with 174 pleats of durable 4-oz spunbonded polyester media, this cartridge provides long service life while maintaining optimal flow rates. Measuring 17⅜″ in length and 8 15⁄16″ in outer diameter with 4″ open end caps, it is built to OEM standards for a precise fit and reliable performance in residential or commercial pool systems.\u003c\/p\u003e\n\u003ch3 data-start=\"827\" data-end=\"843\"\u003eHighlights\u003c\/h3\u003e\n\u003cul data-start=\"844\" data-end=\"1665\"\u003e\n\u003cli data-start=\"844\" data-end=\"1008\"\u003e\n\u003cp data-start=\"846\" data-end=\"1008\"\u003e\u003cstrong data-start=\"846\" data-end=\"877\"\u003eDirect Hayward Replacement:\u003c\/strong\u003e Engineered as a direct substitute for the Hayward CX900RE, designed to fit perfectly in the Star-Clear Plus C900 filter housing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1009\" data-end=\"1184\"\u003e\n\u003cp data-start=\"1011\" data-end=\"1184\"\u003e\u003cstrong data-start=\"1011\" data-end=\"1046\"\u003eHigh-Capacity 90 Sq. Ft. Media:\u003c\/strong\u003e Features 174 pleats of 4-oz polyester material, offering superior surface area to trap fine dirt and debris for longer cleaning cycles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1185\" data-end=\"1336\"\u003e\n\u003cp data-start=\"1187\" data-end=\"1336\"\u003e\u003cstrong data-start=\"1187\" data-end=\"1216\"\u003eOEM-Precision Dimensions:\u003c\/strong\u003e Measures 17⅜″ long × 8 15⁄16″ diameter with 4″ open end caps, ensuring a seamless installation without modifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1337\" data-end=\"1496\"\u003e\n\u003cp data-start=\"1339\" data-end=\"1496\"\u003e\u003cstrong data-start=\"1339\" data-end=\"1374\"\u003eDurable Polyester Construction:\u003c\/strong\u003e Spunbonded polyester media and reinforced end caps withstand repeated cleanings, chemical exposure, and daily pool use.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1497\" data-end=\"1665\"\u003e\n\u003cp data-start=\"1499\" data-end=\"1665\"\u003e\u003cstrong data-start=\"1499\" data-end=\"1534\"\u003eImproves Filtration Efficiency:\u003c\/strong\u003e Delivers clearer, healthier water while easing the workload on the pump and extending the overall efficiency of the pool system.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHayward C900 Star-Clear Plus Filters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"41\" data-end=\"62\"\u003eAdditional Info\u003c\/h3\u003e\n\u003cp data-start=\"63\" data-end=\"253\"\u003eThis section covers the Unicel C-8409 Cartridge Filter, a 90 sq. ft. replacement for Hayward Star-Clear Plus C900. Learn about fitment, maintenance, and how to confirm availability in store.\u003c\/p\u003e\n\u003ch2 data-start=\"255\" data-end=\"292\"\u003eCartridge Dimensions and Fitment\u003c\/h2\u003e\n\u003cp data-start=\"293\" data-end=\"447\"\u003eThe C-8409 measures 17⅜″ in length and 8 15⁄16″ in diameter with 4″ open ends. It directly replaces the Hayward CX900RE in Star-Clear Plus C900 filters.\u003c\/p\u003e\n\u003ch4 data-start=\"448\" data-end=\"516\"\u003edoes unicel c 8409 cartridge fit hayward c900 star clear plus\u003c\/h4\u003e\n\u003ch4 data-start=\"517\" data-end=\"587\"\u003ewhat are the exact dimensions of unicel c 8409 filter cartridge\u003c\/h4\u003e\n\u003ch4 data-start=\"588\" data-end=\"647\"\u003edoes unicel c 8409 replace hayward cx900re cartridge\u003c\/h4\u003e\n\u003ch4 data-start=\"648\" data-end=\"718\"\u003ein store staff can confirm fit of unicel c 8409 before purchase\u003c\/h4\u003e\n\u003ch4 data-start=\"719\" data-end=\"786\"\u003ewill unicel c 8409 work in other hayward star clear housings\u003c\/h4\u003e\n\u003ch2 data-start=\"788\" data-end=\"822\"\u003eWhen to Replace the Cartridge\u003c\/h2\u003e\n\u003cp data-start=\"823\" data-end=\"971\"\u003eReplace cartridges when filter pressure climbs 8–10 psi above normal or water clarity declines. C-8409’s 174 pleats extend time between cleanings.\u003c\/p\u003e\n\u003ch4 data-start=\"972\" data-end=\"1036\"\u003ehow often should i replace unicel c 8409 cartridge filter\u003c\/h4\u003e\n\u003ch4 data-start=\"1037\" data-end=\"1094\"\u003ewill new unicel c 8409 fix cloudy water in my pool\u003c\/h4\u003e\n\u003ch4 data-start=\"1095\" data-end=\"1159\"\u003ecan unicel c 8409 be rinsed and reused before replacement\u003c\/h4\u003e\n\u003ch4 data-start=\"1160\" data-end=\"1221\"\u003ehow long does unicel c 8409 last with regular pool use\u003c\/h4\u003e\n\u003ch4 data-start=\"1222\" data-end=\"1283\"\u003ewhat signs show my c 8409 cartridge is worn or clogged\u003c\/h4\u003e\n\u003ch2 data-start=\"1285\" data-end=\"1312\"\u003eBuying C-8409 In Store\u003c\/h2\u003e\n\u003cp data-start=\"1313\" data-end=\"1435\"\u003eBring your old cartridge for quick comparison. Local staff can verify cross-reference numbers like CX900RE for accuracy.\u003c\/p\u003e\n\u003ch4 data-start=\"1436\" data-end=\"1502\"\u003ebuy unicel c 8409 filter cartridge in store near chatsworth\u003c\/h4\u003e\n\u003ch4 data-start=\"1503\" data-end=\"1569\"\u003eavailable locally unicel c 8409 90 sq ft replacement filter\u003c\/h4\u003e\n\u003ch4 data-start=\"1570\" data-end=\"1638\"\u003econfirm in store stock of c 8409 before weekend pool cleaning\u003c\/h4\u003e\n\u003ch4 data-start=\"1639\" data-end=\"1709\"\u003ewalk in with old filter to compare with unicel c 8409 cartridge\u003c\/h4\u003e\n\u003ch4 data-start=\"1710\" data-end=\"1760\"\u003eswap unopened c 8409 in store if wrong size\u003c\/h4\u003e","brand":"Unicel","offers":[{"title":"Default Title","offer_id":50746365411616,"sku":"C-8409","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0922\/3326\/9536\/files\/C-8409UnicelHaywardC90090Sq.Ft.CartridgeCX900REDiscountPoolMart_4.jpg?v=1761592022","url":"https:\/\/discountpoolmart.com\/products\/c-8409-unicel-hayward-c900-90-sq-ft-cartridge-cx900re","provider":"Discount Pool Mart","version":"1.0","type":"link"}