{"product_id":"unicel-c-8409-90-sq-ft-pool-filter-cartridge-174-pleats-compatible-with-hayward-sta-rite-waterway","title":"Unicel C-8409 90 sq ft Pool Filter Cartridge — 174 Pleats, Compatible with Hayward, Sta-Rite \u0026 Waterway","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Unicel C-8409 is a replacement pool filter cartridge designed to keep your water clear by intercepting debris through a wide filtration area. It features 90 square feet of media and 174 pleats, offering substantial surface area to treat pool water as it passes through.\u003c\/p\u003e\n\u003ch3\u003eFiltration performance\u003c\/h3\u003e\n\u003cp\u003eWith a 4-ounce basis weight media and 100% polyester Reemay construction, the cartridge balances dirt-holding capacity with cleanability and durability, while offering good chemical resistance. Debris capture is noted at roughly 20 microns on average, depending on system conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSharp, uniform pleat folds maximize water flow and minimize pressure loss, helping the filter surface work efficiently.\u003c\/li\u003e\n  \u003cli\u003eLarge surface area supports more debris hold without immediate clogging, aiding maintenance intervals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDesign and installation\u003c\/h3\u003e\n\u003cp\u003eThe end-cap design provides a 4-inch inner diameter (ID) with an open configuration and molded gasket for easier removal and replacement. The cartridge body uses durable plastic resistant to common pool chemicals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEnd caps and gasket simplify swapping cartridges in standard housings.\u003c\/li\u003e\n  \u003cli\u003eMade from durable polyester media, the cartridge is built to withstand routine chlorine exposure and cleaning cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment and dimensions\u003c\/h3\u003e\n\u003cp\u003eDesigned to fit Hayward Pool Products, Sta-Rite, and Waterway systems, it matches common filter housings with an outer diameter of 8-15\/16 inches and a length of 17-3\/8 inches.\u003c\/p\u003e\n\u003ch3\u003eReal-world use and maintenance tips\u003c\/h3\u003e\n\u003cp\u003eIn everyday pool care, this cartridge supports clearer water between cleanings, especially after busy weekends or seasonal use. For best results, follow your filter housing’s maintenance schedule and monitor system pressure to decide when to replace.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What pool systems is the Unicel C-8409 compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Hayward, Sta-Rite, and Waterway; standard 8-15\/16 in OD and 17-3\/8 in length.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What filtration benefits does the C-8409 offer?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: 174 pleats across 90 sq ft capture debris to about 20 microns, with durable polyester media and easy end-cap removal.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Unicel","offers":[{"title":"Default Title","offer_id":48216722211060,"sku":"B000OWHZQ6","price":97.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/6652\/0820\/files\/unicel-c-8409-90-sqft-media-replacement-pool-filter-cartridge-174-pleats.jpg?v=1778611598","url":"https:\/\/www.cerapatiogarden.com\/products\/unicel-c-8409-90-sq-ft-pool-filter-cartridge-174-pleats-compatible-with-hayward-sta-rite-waterway","provider":"Cera Garden","version":"1.0","type":"link"}