{"product_id":"toread-replacement-spa-filter-prb35-in-35-sq-ft-2-pack-unicel-c-4335-more","title":"TOREAD Replacement Spa Filter PRB35-IN – 35 Sq.Ft, 2-Pack | Unicel C-4335 \u0026 More","description":"\u003cp\u003eUpgrade your spa maintenance with the TOREAD Replacement Spa Filter PRB35-IN, a drop-in cartridge designed for 35 square feet of filtration area. It fits a broad range of standard spa filters, offering a straightforward swap that can help keep water looking and feeling fresher between care sessions.\u003c\/p\u003e\u003cp\u003eTOREAD is a proud member of the Pool \u0026amp; Hot Tub Alliance, aligning with industry standards for filtration performance and safety. The filter is NSF\/ANSI 50 certified, reflecting the use of safe materials and tested performance. These credentials emphasize reliability and suitability for family spa use, giving you a confidence boost when selecting replacement parts.\u003c\/p\u003e\u003ch3\u003eHighlights\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e35 sq ft of filtration area supports debris capture with each pass\u003c\/li\u003e\n\u003cli\u003eHeavy chlorine resistant end caps and reinforced center support for durability\u003c\/li\u003e\n\u003cli\u003eThicker trilobal filtration fabric for improved particle capture and dirt-holding capacity\u003c\/li\u003e\n\u003cli\u003eNot designed for backwashing; backwashing may cause damage\u003c\/li\u003e\n\u003cli\u003eReplaces PRB35-IN and other 35 sq ft models such as Unicel C-4335, Guardian 409-219, and Filbur FC-2385\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eLength: 9 1\/4 inches\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 5 inches\u003c\/li\u003e\n\u003cli\u003eTop and bottom opening: 2 1\/8 inches\u003c\/li\u003e\n\u003cli\u003eFiltration area: 35 square feet\u003c\/li\u003e\n\u003cli\u003eFilter material: Trilobal filtration fabric\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility and care\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCompatible with multiple brands and part numbers, acting as a practical spare part for 35 sq ft cartridges\u003c\/li\u003e\n\u003cli\u003eFor best results, replace according to your spa maintenance schedule and water testing routine\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNotes: This TOREAD cartridge is a compatible spare part. Brand names mentioned are for reference purposes only, and TOREAD is an independent brand. The filter is designed for drop-in use and is not intended for backwashing, which can lead to cracks or damage over time.\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 TOREAD PRB35-IN replacement fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits PRB35-IN, Unicel C-4335, Guardian 409-219, Filbur FC-2385, and similar 35 sq.ft cartridges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this filter designed for backwashing?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. It is not designed for backwashing and may crack if backwashed.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TOREAD","offers":[{"title":"Default Title","offer_id":43979981586566,"sku":"B08YY5ZBBH","price":42.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/1602\/5478\/files\/toread-replacement-spa-filter-prb35-in.jpg?v=1778680654","url":"https:\/\/patiozora.com\/products\/toread-replacement-spa-filter-prb35-in-35-sq-ft-2-pack-unicel-c-4335-more","provider":"PatioZora","version":"1.0","type":"link"}