{"product_id":"cryspool-eco-friendly-pool-filter-compatible-prb25-in-c-4326-fc-2375-2pack-support-oem","title":"PRB25-IN Spa Filter Cartridge, 2-Pack — Cross-Ref Unicel C-4326, Filbur FC-2375\/FC-2370, Guardian 413-106, 5\" x 13-5\/16\" Drop-In","description":"\u003cp\u003eThis is the PRB25-IN spa filter cartridge — a direct cross-reference for Unicel C-4326, Filbur FC-2375 and FC-2370, Guardian 413-106, and part numbers 3005845, 17-2327, 100586, 33521, 25392, and 817-2500. Same 5\" diameter, 13-5\/16\" length, drop-in fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAlso sold under these part numbers:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUnicel C-4326\u003c\/li\u003e\n\u003cli\u003eGuardian 413-106\u003c\/li\u003e\n\u003cli\u003eFilbur FC-2375 \/ FC-2370\u003c\/li\u003e\n\u003cli\u003e3005845\u003c\/li\u003e\n\u003cli\u003e17-2327\u003c\/li\u003e\n\u003cli\u003e100586\u003c\/li\u003e\n\u003cli\u003e33521\u003c\/li\u003e\n\u003cli\u003e25392\u003c\/li\u003e\n\u003cli\u003e817-2500\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhy FilterCycle:\u003c\/strong\u003e No-hype replacement filters at a fair, consistent price — no lightning deals, no guessing if today's price is a good one. Order once, or subscribe on a cadence built around how often you actually use your spa. Subscribe and save 10% — cancel anytime.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: Pleated drop-in spa filter cartridge\u003c\/li\u003e\n\u003cli\u003eDimensions: 5\" diameter x 13-5\/16\" length\u003c\/li\u003e\n\u003cli\u003eSold as: 2-pack\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the PRB25-IN filter the same as C-4326?\u003c\/strong\u003e Yes — C-4326 is Unicel's part number for the same cartridge. Filbur's equivalent is FC-2375 (or FC-2370 depending on packaging).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know this is the right size?\u003c\/strong\u003e Measure your current filter: this cartridge is 5\" in diameter and 13-5\/16\" long, drop-in style with no threaded neck.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow often should I replace it?\u003c\/strong\u003e Most spa owners replace every 4–6 weeks with regular use.\u003c\/p\u003e","brand":"Filter Cycle","offers":[{"title":"White","offer_id":45410381627478,"sku":"210190015:3331185#White","price":39.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/8359\/9446\/files\/H34dfef107982421181544a826888c888O.webp?v=1784406514","url":"https:\/\/filter-cycle.myshopify.com\/products\/cryspool-eco-friendly-pool-filter-compatible-prb25-in-c-4326-fc-2375-2pack-support-oem","provider":"Filter Cycle","version":"1.0","type":"link"}