{"product_id":"fil-fresh-prb35-in-hot-tub-filter-replacement-35-sq-ft-2-pack-fits-filbur-fc-2385-unicel-c-4335","title":"Fil-fresh PRB35-IN Hot Tub Filter Replacement – 35 Sq. Ft, 2-Pack (Fits Filbur FC-2385, Unicel C-4335)","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eMeet the Fil-fresh PRB35-IN hot tub filter cartridge, crafted for 35 sq ft systems and designed to be a reliable replacement for popular models like Filbur FC-2385 and Unicel C-4335. Its form factor is tuned for compatibility and ease of swap, with precise dimensions that fit standard spa housings.\u003c\/p\u003e\n\u003cp\u003eDimensions to note: Length 9 1\/4\", Outside Diameter 5\", Top \u0026amp; Bottom Openings 2 1\/8\". These specs help ensure a snug fit and steady water flow through the filtration media.\u003c\/p\u003e\n\u003ch3\u003eWhat sets PRB35-IN apart\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement compatibility: Filbur FC-2385, Unicel C-4335, Pleatco PRB35-IN, Guardian 409-219, Waterway 817-3501, Pentair R173431.\u003c\/li\u003e\n\u003cli\u003eDimensions and filtration area: 9 1\/4\" length, 5\" outside diameter, 35 sq ft of filtration surface.\u003c\/li\u003e\n\u003cli\u003e3× more effective filtration: NSF 50 certified and designed with ultrafine particle technology to capture more debris than standard filters.\u003c\/li\u003e\n\u003cli\u003eDurable construction: corrosion-resistant end caps and reinforced pleated fibers resist chemical exposure and deformation over time.\u003c\/li\u003e\n\u003cli\u003eWashable \u0026amp; reusable: trilobal fiber structure promotes even debris distribution and easier rinsing, reducing overall maintenance time.\u003c\/li\u003e\n\u003cli\u003eFree-flow core: supports better water circulation and reduces clogging, which can extend the time between cleanings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReal-life use and benefits\u003c\/h3\u003e\n\u003cp\u003eIn everyday spa sessions, this filter helps maintain clearer water by trapping leaves, hair, sand, and oily residues as you soak. The durable build and reusable design mean you can rotate in a fresh cartridge with minimal downtime and keep the jets flowing smoothly.\u003c\/p\u003e\n\u003cp\u003eNote: Benefits described reflect design features and specifications. Actual results may vary with usage, water chemistry, and maintenance routines. This copy does not constitute medical advice or guarantees.\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 models does the PRB35-IN replace?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It replaces Filbur FC-2385, Unicel C-4335, Pleatco PRB35-IN, and Guardian 409-219, among other 35 sq ft filters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What maintenance benefits does it offer?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Trilobal fibers and a free-flow core promote even debris distribution and better flow, potentially extending time between cleanings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Fil-fresh","offers":[{"title":"Default Title","offer_id":45753991299258,"sku":"B0DKDWZFZP","price":89.58,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3536\/8890\/files\/fil-fresh-prb35-in-core-structure.jpg?v=1775383713","url":"https:\/\/gardencanada.ca\/products\/fil-fresh-prb35-in-hot-tub-filter-replacement-35-sq-ft-2-pack-fits-filbur-fc-2385-unicel-c-4335","provider":"Garden Canada","version":"1.0","type":"link"}