{"product_id":"doule-king-prb25-spa-filter-replacement-2-pack-for-prb25-in-5x13-drop-in-c-4326-fc-2370-2375","title":"Doule King PRB25 Spa Filter Replacement — 2 Pack for PRB25-IN \u0026 5x13 Drop-In (C-4326, FC-2370\/2375)","description":"\u003cdiv class=\"seo-section\"\u003e\n  \u003ch2\u003eOverview\u003c\/h2\u003e\n  \u003cp\u003eThe Doule King PRB25 spa filter replacement is designed to fit standard 5x13 drop-in cartridges, delivering a dependable path to clear water and consistent spa performance. Built to align with widely used cartridge sizes, this replacement offers a straightforward, ready-to-use option for hot tub filtration without the guesswork.\u003c\/p\u003e\n  \u003cp\u003eWith careful construction and precise sizing, it supports regular spa cycles by maintaining smooth water flow and trapping particulates during filtration. The result is a balanced feel and a more enjoyable soak experience, derived from a filter that integrates into your routine rather than complicates it.\u003c\/p\u003e\n\n  \u003ch3\u003eTechnical specs\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eLength: 13 5\/16 inches; Outside Diameter: 5 inches; Top \/ Bottom Opening: 2 1\/8 inches; Filtration Area: 25 sq ft\u003c\/li\u003e\n    \u003cli\u003eEasy to release trapped debris during cleaning, returning the cartridge to close-to-new filtration performance after a rinse\u003c\/li\u003e\n    \u003cli\u003eReplaces For Unicel C-4326, Pleatco PRB25-IN, Filbur FC-2375, FC-2370; compatible with 5x13 drop-in spa filters\u003c\/li\u003e\n    \u003cli\u003eSold as a 2-pack, providing ready replacements and better value for ongoing spa care\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhy this filter matters\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eLarge filtration area (25 sq ft) supports efficient particulate capture and steady water flow\u003c\/li\u003e\n    \u003cli\u003eRoutine maintenance becomes easier when the cartridge is designed for simple cleaning and quick reinsertion\u003c\/li\u003e\n    \u003cli\u003eCross-compatibility with common models helps reduce fitting concerns during replacement shopping\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eMaintenance and care\u003c\/h3\u003e\n  \u003cp\u003eFor best results, clean the cartridge every 2 weeks, rinse thoroughly, and allow it to dry before reinstalling. Regular, light maintenance helps preserve flow and water quality across spa cycles.\u003c\/p\u003e\n\n  \u003ch3\u003eWhat you get\u003c\/h3\u003e\n  \u003cp\u003eThis listing provides a 2-pack of PRB25 spa filters, designed for convenient, ongoing replacement that fits a wide range of popular hot tubs.\u003c\/p\u003e\n\n  \u003cp\u003eIf you have questions about fit or compatibility, our support team is ready to help you confirm the right replacement for your model.\u003c\/p\u003e\n\u003c\/div\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 models does the Doule King PRB25 filter replace?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Compatible with Unicel C-4326, Filbur FC-2370\/FC-2375, Pleatco PRB25-IN, and other 5x13 drop-in spa filters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I maintain the PRB25 filter for best results?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Clean every two weeks, rinse thoroughly, and allow to dry before reinstalling.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Doule King","offers":[{"title":"Default Title","offer_id":43982441382022,"sku":"B0DNSC5ZFC","price":37.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/1602\/5478\/files\/doule-king-prb25-spa-filter-packaging.jpg?v=1778758017","url":"https:\/\/patiozora.com\/products\/doule-king-prb25-spa-filter-replacement-2-pack-for-prb25-in-5x13-drop-in-c-4326-fc-2370-2375","provider":"PatioZora","version":"1.0","type":"link"}