{"product_id":"c-4335-unicel-pentair-rainbow-dynamic-35","title":"C-4335 | Unicel Pentair Rainbow Dynamic 35","description":"\u003cp data-start=\"172\" data-end=\"807\"\u003eThe \u003cstrong data-start=\"202\" data-end=\"248\"\u003eUnicel C-4335 (Pentair Rainbow Dynamic 35)\u003c\/strong\u003e is a 35 square foot replacement cartridge designed for Pentair and Rainbow Dynamic IV filtration systems as well as compatible top-load inline setups. Built with 219 pleats of durable polyester media, it captures fine particles to keep pool and spa water clean and balanced. Measuring 9¼″ in length with a 4 15⁄16″ outer diameter and 2 1⁄8″ center openings, this cartridge is precision-engineered to meet or exceed OEM standards. Offering reliable water clarity and longer cleaning intervals, it’s an ideal choice for maintaining strong system performance.\u003c\/p\u003e\n\u003ch3 data-start=\"809\" data-end=\"825\"\u003eHighlights\u003c\/h3\u003e\n\u003cul data-start=\"826\" data-end=\"1675\"\u003e\n\u003cli data-start=\"826\" data-end=\"993\"\u003e\n\u003cp data-start=\"828\" data-end=\"993\"\u003e\u003cstrong data-start=\"828\" data-end=\"853\"\u003eHigh Filtration Area:\u003c\/strong\u003e Provides 35 square feet of filtration surface with 219 pleats, delivering thorough debris capture and extended service between cleanings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"994\" data-end=\"1160\"\u003e\n\u003cp data-start=\"996\" data-end=\"1160\"\u003e\u003cstrong data-start=\"996\" data-end=\"1018\"\u003eExact OEM Fitment:\u003c\/strong\u003e Features 2 1⁄8″ inner diameter openings and 9¼″ length for a perfect match to Rainbow Dynamic 35, Pentair, and Waterway cartridge housings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1161\" data-end=\"1335\"\u003e\n\u003cp data-start=\"1163\" data-end=\"1335\"\u003e\u003cstrong data-start=\"1163\" data-end=\"1191\"\u003eDurable Polyester Media:\u003c\/strong\u003e Constructed with tough, chemical-resistant polyester material and sturdy end caps designed to withstand repeated cleanings and long-term use.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1336\" data-end=\"1513\"\u003e\n\u003cp data-start=\"1338\" data-end=\"1513\"\u003e\u003cstrong data-start=\"1338\" data-end=\"1361\"\u003eWide Compatibility:\u003c\/strong\u003e Direct replacement for several OEM part numbers, including Rainbow 17-2482, Pentair R173431, Waterway 817-3501, Filbur FC-2385, and Pleatco PRB35-IN.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1514\" data-end=\"1675\"\u003e\n\u003cp data-start=\"1516\" data-end=\"1675\"\u003e\u003cstrong data-start=\"1516\" data-end=\"1543\"\u003eEnhanced Water Quality:\u003c\/strong\u003e Improves circulation efficiency, helps reduce chemical consumption, and keeps pool or spa water crystal clear for longer periods.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"62\" data-start=\"41\"\u003eAdditional Info\u003c\/h3\u003e\n\u003cp data-end=\"248\" data-start=\"63\"\u003eThis section covers the Unicel C-4335, a 35 sq. ft. cartridge for Pentair Rainbow Dynamic 35 and similar systems. Learn about sizing, compatibility, and how to confirm fitment in store.\u003c\/p\u003e\n\u003ch2 data-end=\"287\" data-start=\"250\"\u003eCartridge Dimensions and Fitment\u003c\/h2\u003e\n\u003cp data-end=\"442\" data-start=\"288\"\u003eThe C-4335 measures 9¼″ long, 4 15⁄16″ in diameter, and includes 2 1⁄8″ center openings. It matches the Rainbow Dynamic 35 and related housings exactly.\u003c\/p\u003e\n\u003ch4 data-end=\"517\" data-start=\"443\"\u003edoes unicel c 4335 cartridge fit pentair rainbow dynamic 35 filters\u003c\/h4\u003e\n\u003ch4 data-end=\"586\" data-start=\"518\"\u003ewhat are the exact dimensions of unicel c 4335 pool cartridge\u003c\/h4\u003e\n\u003ch4 data-end=\"649\" data-start=\"587\"\u003ehow many pleats are in unicel c 4335 filter replacement\u003c\/h4\u003e\n\u003ch4 data-end=\"725\" data-start=\"650\"\u003ein store staff can confirm sizing for c 4335 cartridge before buying\u003c\/h4\u003e\n\u003ch4 data-end=\"794\" data-start=\"726\"\u003ewill unicel c 4335 cartridge fit older rainbow top load units\u003c\/h4\u003e\n\u003ch2 data-end=\"830\" data-start=\"796\"\u003eWhen to Replace the Cartridge\u003c\/h2\u003e\n\u003cp data-end=\"982\" data-start=\"831\"\u003eReplace cartridges when pressure rises 8–10 psi above clean pressure or water clarity drops. C-4335 provides strong flow and reliable debris capture.\u003c\/p\u003e\n\u003ch4 data-end=\"1047\" data-start=\"983\"\u003ehow often should i replace unicel c 4335 cartridge filter\u003c\/h4\u003e\n\u003ch4 data-end=\"1110\" data-start=\"1048\"\u003ewill new unicel c 4335 improve cloudy spa or pool water\u003c\/h4\u003e\n\u003ch4 data-end=\"1169\" data-start=\"1111\"\u003esigns my unicel c 4335 cartridge is worn or clogged\u003c\/h4\u003e\n\u003ch4 data-end=\"1239\" data-start=\"1170\"\u003ecan unicel c 4335 be cleaned multiple times before replacement\u003c\/h4\u003e\n\u003ch4 data-end=\"1307\" data-start=\"1240\"\u003edoes unicel c 4335 reduce chemical usage when water is clear\u003c\/h4\u003e\n\u003ch2 data-end=\"1336\" data-start=\"1309\"\u003eBuying C-4335 In Store\u003c\/h2\u003e\n\u003cp data-end=\"1487\" data-start=\"1337\"\u003eBring your old cartridge for comparison. Local staff can verify part numbers such as Pentair R173431 and Pleatco PRB35-IN against the Unicel C-4335.\u003c\/p\u003e\n\u003ch4 data-end=\"1554\" data-start=\"1488\"\u003ebuy unicel c 4335 filter cartridge in store near chatsworth\u003c\/h4\u003e\n\u003ch4 data-end=\"1624\" data-start=\"1555\"\u003eavailable locally unicel c 4335 35 sq ft cartridge replacement\u003c\/h4\u003e\n\u003ch4 data-end=\"1690\" data-start=\"1625\"\u003econfirm in store stock before weekend spa or pool cleaning\u003c\/h4\u003e\n\u003ch4 data-end=\"1757\" data-start=\"1691\"\u003ewalk in with old filter to match to unicel c 4335 cartridge\u003c\/h4\u003e\n\u003ch4 data-end=\"1821\" data-start=\"1758\"\u003eswap unopened c 4335 cartridge in store if incorrect fit\u003c\/h4\u003e","brand":"Unicel","offers":[{"title":"Default Title","offer_id":50742200467744,"sku":"C-4335","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0922\/3326\/9536\/files\/C-4335UnicelPentairRainbowDynamic35DiscountPoolMart_4.jpg?v=1761592072","url":"https:\/\/discountpoolmart.com\/products\/c-4335-unicel-pentair-rainbow-dynamic-35","provider":"Discount Pool Mart","version":"1.0","type":"link"}