{"product_id":"cartridge-filter-75-sqft","title":"Unicel C-8411 75 sq ft Replacement Filter Cartridge","description":"\u003cp\u003eThe Unicel C-8411 is a 75 square foot replacement cartridge element. It measures 8-15\/16 inches in outside diameter and 17-3\/8 inches long, which makes it one of the shorter, wider cartridges rather than a tall slim one.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the fit right\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSquare footage on its own does not decide whether a cartridge fits. Two 75 sq ft elements can be completely different shapes, so measure the old cartridge and match the outside diameter and the length before ordering. Unicel lists this element against Hayward®, Pentair and Waterway filters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace rather than clean\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA cartridge is finished when a proper soak stops bringing the filter pressure back down, or when the pleats have flattened, split or gone permanently gray. At that point the media is loaded past recovery, and no amount of hosing restores the flow.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48634044711124,"sku":"UNI-60-5552","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_e529d876-7076-48cb-8c22-955238e55b42.jpg?v=1788825248","url":"https:\/\/www.activepoolsupply.com\/products\/cartridge-filter-75-sqft","provider":"Active Pool Supply","version":"1.0","type":"link"}