{"product_id":"cartridge-50-sqft-in-line","title":"Unicel C-4950 Filter Cartridge, 50 Sq Ft for Hot Tubs and Spas","description":"\u003cp\u003eThe Unicel C-4950 is a replacement cartridge for the in-line filters used on hot tubs and spas. It carries 50 square feet of filtration area in a body 4-15\/16 inches in outside diameter and 13-5\/16 inches long.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy the pleat count matters\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe cartridge gets its 50 square feet from 212 pleats folded into that small diameter. More surface area means the same amount of dirt is spread thinner, so the filter runs longer between cleanings and the pump works against less resistance while it does.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eUnicel lists this cartridge against Jacuzzi (Carvin), Pentair and Waterway filters. Cartridges of a similar length are not interchangeable if the diameter or the end caps differ, so pull the old one and measure it against the dimensions above.\u003c\/p\u003e","brand":"Unicel Filter Cartridges","offers":[{"title":"Default Title","offer_id":48634475675860,"sku":"UNI-60-5278","price":41.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_e6e9bc0b-2bb8-4b6c-8b93-260ff3c576a0.jpg?v=1788831987","url":"https:\/\/www.activepoolsupply.com\/products\/cartridge-50-sqft-in-line","provider":"Active Pool Supply","version":"1.0","type":"link"}