{"product_id":"c-4335-unicel-pentair-rainbow-dynamic-35","title":"Unicel Pentair Rainbow Dynamic 35 | C-4335","description":"\u003cp data-start=\"1834\" data-end=\"2368\"\u003eThe Unicel C-4335 Cartridge is a 35 square foot replacement filter designed for Pentair Rainbow Dynamic IV and similar inline cartridge systems. Built with 219 pleats of strong polyester fabric, it traps fine particles and oils to maintain clean pool and spa water. Its 9-1\/4″ length, 4-15\/16″ outer diameter, and 2-1\/8″ center openings replicate OEM sizing for a dependable fit. Compatible with multiple part numbers across brands, the C-4335 helps extend cleaning cycles and reduce chemical usage for efficient system performance.\u003c\/p\u003e\n\u003ch3 data-start=\"2370\" data-end=\"2386\"\u003eHighlights\u003c\/h3\u003e\n\u003cul data-start=\"2388\" data-end=\"3072\"\u003e\n\u003cli data-start=\"2388\" data-end=\"2530\"\u003e\n\u003cp data-start=\"2390\" data-end=\"2530\"\u003e\u003cstrong data-start=\"2390\" data-end=\"2423\"\u003eDirect Replacement Cartridge:\u003c\/strong\u003e Equivalent to Pentair Rainbow 17-2482, R173431, Waterway 817-3501, Pleatco PRB35-IN, and Filbur FC-2385.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2531\" data-end=\"2673\"\u003e\n\u003cp data-start=\"2533\" data-end=\"2673\"\u003e\u003cstrong data-start=\"2533\" data-end=\"2559\"\u003e35 Sq. Ft. Media Area:\u003c\/strong\u003e Offers 219 pleats of polyester fabric to capture dirt and fine particles effectively between routine cleanings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2674\" data-end=\"2807\"\u003e\n\u003cp data-start=\"2676\" data-end=\"2807\"\u003e\u003cstrong data-start=\"2676\" data-end=\"2694\"\u003eOEM-Grade Fit:\u003c\/strong\u003e Sized at 9-1\/4″ × 4-15\/16″ with 2-1\/8″ openings, ensuring accurate installation in compatible filter housings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2808\" data-end=\"2944\"\u003e\n\u003cp data-start=\"2810\" data-end=\"2944\"\u003e\u003cstrong data-start=\"2810\" data-end=\"2834\"\u003eBuilt for Longevity:\u003c\/strong\u003e Rugged polyester and molded end caps provide resistance to pool chemicals and UV exposure for extended use.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2945\" data-end=\"3072\"\u003e\n\u003cp data-start=\"2947\" data-end=\"3072\"\u003e\u003cstrong data-start=\"2947\" data-end=\"2978\"\u003eImproves Clarity \u0026amp; Balance:\u003c\/strong\u003e Boosts circulation and water quality while lowering chemical demand in spas or small pools.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"3635\" data-end=\"3656\"\u003eAdditional Info\u003c\/h3\u003e\n\u003cp data-start=\"3657\" data-end=\"3834\"\u003eThis section details the Unicel C-4335, a 35 sq. ft. filter cartridge for Rainbow Dynamic 35. Learn how it fits, when to replace it, and how to order online with quick shipping.\u003c\/p\u003e\n\u003ch2 data-start=\"3836\" data-end=\"3870\"\u003eSpecs and Ordering Confidence\u003c\/h2\u003e\n\u003cp data-start=\"3871\" data-end=\"4022\"\u003eThe C-4335 matches OEM dimensions: 9¼″ length, 4 15⁄16″ OD, and 2 1⁄8″ center holes. It replaces part numbers such as R173431, FC-2385, and PRB35-IN.\u003c\/p\u003e\n\u003ch4 data-start=\"4023\" data-end=\"4095\"\u003eorder unicel c 4335 cartridge online with free shipping available\u003c\/h4\u003e\n\u003ch4 data-start=\"4096\" data-end=\"4167\"\u003ebuy unicel c 4335 filter cartridge online for pentair rainbow 35\u003c\/h4\u003e\n\u003ch4 data-start=\"4168\" data-end=\"4231\"\u003edoes unicel c 4335 include 219 pleats of polyester media\u003c\/h4\u003e\n\u003ch4 data-start=\"4232\" data-end=\"4297\"\u003econfirm unicel c 4335 cartridge specs before buying online\u003c\/h4\u003e\n\u003ch4 data-start=\"4298\" data-end=\"4367\"\u003eships fast unicel c 4335 filter replacement for spas and pools\u003c\/h4\u003e\n\u003ch2 data-start=\"4369\" data-end=\"4403\"\u003eWater Quality and Filter Life\u003c\/h2\u003e\n\u003cp data-start=\"4404\" data-end=\"4541\"\u003eThe cartridge enhances circulation and reduces strain on pumps. Replace when worn or when cleaning no longer restores flow and clarity.\u003c\/p\u003e\n\u003ch4 data-start=\"4542\" data-end=\"4608\"\u003ewill unicel c 4335 improve cloudy pool water after shipping\u003c\/h4\u003e\n\u003ch4 data-start=\"4609\" data-end=\"4675\"\u003efree shipping unicel c 4335 35 sq ft cartridge online order\u003c\/h4\u003e\n\u003ch4 data-start=\"4676\" data-end=\"4740\"\u003ewhat signs show unicel c 4335 cartridge needs replacement\u003c\/h4\u003e\n\u003ch4 data-start=\"4741\" data-end=\"4798\"\u003ecan unicel c 4335 cartridge extend filter run time\u003c\/h4\u003e\n\u003ch4 data-start=\"4799\" data-end=\"4868\"\u003edoes unicel c 4335 improve efficiency of spa or hot tub filter\u003c\/h4\u003e\n\u003ch2 data-start=\"4870\" data-end=\"4911\"\u003eOnline Ordering and Delivery Options\u003c\/h2\u003e\n\u003cp data-start=\"4912\" data-end=\"5056\"\u003eBundle with other chemicals or parts to meet shipping thresholds. Online retailers provide full cross-reference details for easy confirmation.\u003c\/p\u003e\n\u003ch4 data-start=\"5057\" data-end=\"5108\"\u003ebuy unicel c 4335 online with quick delivery\u003c\/h4\u003e\n\u003ch4 data-start=\"5109\" data-end=\"5177\"\u003efree shipping threshold when ordering unicel c 4335 cartridge\u003c\/h4\u003e\n\u003ch4 data-start=\"5178\" data-end=\"5246\"\u003ewhat is return policy if unicel c 4335 does not fit my filter\u003c\/h4\u003e\n\u003ch4 data-start=\"5247\" data-end=\"5314\"\u003ecan i order unicel c 4335 cartridge online same day shipping\u003c\/h4\u003e\n\u003ch4 data-start=\"5315\" data-end=\"5382\"\u003ehow to confirm cross reference before ordering c 4335 online\u003c\/h4\u003e","brand":"Unicel","offers":[{"title":"Default Title","offer_id":52031852216620,"sku":"C-4335","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0698\/1943\/3260\/files\/UnicelPentairRainbowDynamic35C-4335SOSPool_4.jpg?v=1761592237","url":"https:\/\/www.sospool.com\/products\/c-4335-unicel-pentair-rainbow-dynamic-35","provider":"SOS Pool \u0026 Spa Supplies","version":"1.0","type":"link"}