{"product_id":"unicel-replacement-spa-hot-tub-filter-cartridge-c-4950-50-sq-ft-212-pleats-2-1-8-id","title":"Unicel Replacement Spa \u0026 Hot Tub Filter Cartridge C-4950 — 50 Sq Ft, 212 Pleats, 2-1\/8\" ID","description":"\u003cp\u003e\u003cstrong\u003eThe Unicel C-4950 is a 50 square-foot replacement spa and pool filter cartridge with 212 pleats designed to trap fine debris and restore water clarity.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your hot tub or spa is running cloudy or the pump pressure is rising, the C-4950 fits many common makes and models and provides a high-capacity, durable filtration element. Built from 100% polyester Reemay media, this cartridge balances dirt-holding power with cleanability and chemical resistance so you can get reliable performance between cleanings.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the C-4950 improve water clarity in my spa?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge offers 50 square feet of pleated media and 212 pleats to create a very large surface area in a compact tube. That area captures particles down to about 20 microns on average, reducing visible debris and helping pumps run efficiently.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e50 sq ft of filtration media for extended dirt capacity\u003c\/li\u003e\n  \u003cli\u003e212 precise pleats to maximize usable surface\u003c\/li\u003e\n  \u003cli\u003eAverage capture of 20 microns for fine particulates\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this filter physically fit my hot tub or spa?\u003c\/h3\u003e\n\u003cp\u003eThe Unicel C-4950 has a 2-1\/8-inch inner diameter end cap, an outside diameter of 4-15\/16 inches, and a length of 13-5\/16 inches. The open-end cap design simplifies removal and replacement, and the dimensions match many factory cartridges used by major brands.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEnd cap ID: 2-1\/8 inches for hub compatibility\u003c\/li\u003e\n  \u003cli\u003eOuter diameter: 4-15\/16 inches to fit standard housings\u003c\/li\u003e\n  \u003cli\u003eLength: 13-5\/16 inches suitable for many spa models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat is the filter made of and how do I maintain it?\u003c\/h3\u003e\n\u003cp\u003eThis cartridge uses 100% polyester Reemay media at a 3-ounce basis weight, chosen for durability, chemical resistance, and ease of cleaning. Rinse regularly with a hose and periodic soak in a filter cleaner to remove oils and scale; replace when media is torn or permanently stained.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3-ounce polyester Reemay resists chemicals and holds dirt well\u003c\/li\u003e\n  \u003cli\u003eRinse with a spray nozzle after each use and deep-clean monthly\u003c\/li\u003e\n  \u003cli\u003eReplace cartridge if pleats are damaged or flow remains poor\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich spa and pool brands are compatible with this cartridge?\u003c\/h3\u003e\n\u003cp\u003eThe C-4950 is specified to fit a broad range of OEM and aftermarket housings. It’s commonly compatible with Bullfrog, Cal Spas, Coleman, Sundance, Waterway, Jacuzzi Premium, Artesian, Caldera, Pentair-related products, and many custom molded systems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits popular brands like Sundance, Jacuzzi Premium, Bullfrog, and Caldera\u003c\/li\u003e\n  \u003cli\u003eAlso compatible with Pentair-related and many custom molded filter housings\u003c\/li\u003e\n  \u003cli\u003eCheck housing dimensions and the 2-1\/8\" ID before ordering for perfect fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The Unicel C-4950 is for spa and hot tub owners, service techs, and pool shops who need a high-capacity, chemically resistant replacement cartridge that restores flow and extends time between cleanings. Choose this filter if your current cartridge matches the listed dimensions (2-1\/8\" ID, 4-15\/16\" OD, 13-5\/16\" length) and you want a durable, easy-to-clean pleated element compatible with many major spa brands.\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 size is the Unicel C-4950 filter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It has a 2-1\/8\" inner diameter, 4-15\/16\" outer diameter, and is 13-5\/16\" long.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean or replace this cartridge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Rinse after regular use, deep-clean monthly; replace when pleats are damaged or flow doesn't improve.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Unicel","offers":[{"title":"Default Title","offer_id":56830191042900,"sku":"B000A4TDPO","price":55.47,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/unicel-c-4950-front-view.jpg?v=1787002457","url":"https:\/\/gardenluxe.co.uk\/products\/unicel-replacement-spa-hot-tub-filter-cartridge-c-4950-50-sq-ft-212-pleats-2-1-8-id","provider":"Gardenluxe Uk","version":"1.0","type":"link"}