{"product_id":"lvjusen-prb50-in-50-sq-ft-hot-tub-filter-cartridge-20-micron-trilobal-media-washable-replacement-for-unicel-c-4950","title":"LVJUSEN PRB50-IN 50 sq ft Hot Tub Filter Cartridge — 20 Micron Trilobal Media, Washable Replacement for Unicel C-4950","description":"\u003cp\u003e\u003cstrong\u003eThe LVJUSEN PRB50-IN is a washable 50 sq ft spa filter engineered to replace Unicel C-4950 and similar cartridges, removing fine debris with 20 micron filtration.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your hot tub or spa needs a reliable replacement cartridge that fits popular makes and models, the LVJUSEN PRB50-IN offers a direct-fit option for many Unicel, Pleatco, Filbur, Sundance and Jacuzzi-compatible systems. Built with trilobal synthetic media to boost surface area, this cartridge balances effective particle capture with easy maintenance — rinse monthly and replace seasonally for steady performance. The design mirrors the dimensions and pleat count of common OEM parts so you can swap it in without modifying your plumbing.\u003c\/p\u003e\n\n\u003ch3\u003eWhich spa and hot tub models does this cartridge fit?\u003c\/h3\u003e\n\u003cp\u003eThe LVJUSEN PRB50-IN is designed as a cross-reference replacement for several branded filters and specific spa models. It matches the Unicel C-4950 form factor and fits a wide range of models from Jacuzzi, Sundance and other spa manufacturers listed in the compatibility notes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces Unicel C-4950, Pleatco PRB50\/PRB50-IN-M, Filbur FC-2390, Guardian 413 212 02, Magnum RD50, Harmsco H-4950.\u003c\/li\u003e\n  \u003cli\u003eWorks with many Jacuzzi 200 Series (2005+) models and select Jacuzzi 2011+ models—verify against your OEM number.\u003c\/li\u003e\n  \u003cli\u003eCompatible with multiple Sundance 680 Series models: Tacoma, Denali, Edison, Peyton, McKinley, Ramona.\u003c\/li\u003e\n  \u003cli\u003eFits many Spa and Cal Spas applications that use 50 sq ft cartridges; always confirm dimensions and end-cap style before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow well does it filter water and what is the media made of?\u003c\/h3\u003e\n\u003cp\u003eThis replacement cartridge uses trilobal synthetic media engineered to increase effective surface area and trap small particles down to about 20 microns. That level of filtration captures fine dust, skin oils and other common spa debris while keeping flow through the system steady.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFiltration rating: approximately 20 μ (microns) for fine particle capture.\u003c\/li\u003e\n  \u003cli\u003eTrilobal synthetic fabric increases dust-holding capacity and flow efficiency.\u003c\/li\u003e\n  \u003cli\u003e50 square feet of total media surface to spread dirt across many pleats and extend service life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat maintenance does the LVJUSEN PRB50-IN require?\u003c\/h3\u003e\n\u003cp\u003eMaintenance is straightforward: rinse and lightly wash the cartridge monthly to remove trapped debris, and replace the cartridge when flow or cleanliness declines. Regular cleaning extends usable life, but an interval replacement every three months is recommended for typical use to maintain consistent filtration performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRinse monthly with a hose; use a cartridge cleaner for deeper cleaning when needed.\u003c\/li\u003e\n  \u003cli\u003eAllow to dry fully between deep cleans to avoid mold or odor.\u003c\/li\u003e\n  \u003cli\u003eReplace generally every three months for average household spa use, sooner with heavy use or poor water balance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I confirm compatibility before buying?\u003c\/h3\u003e\n\u003cp\u003eCheck your current filter’s part number, physical dimensions, and end-cap style to confirm a match. The LVJUSEN PRB50-IN is intended as a drop-in replacement for many common 50 sq ft cartridges, but comparing exact measurements prevents incorrect purchases.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompare part numbers: look for Unicel C-4950 or listed cross-reference numbers.\u003c\/li\u003e\n  \u003cli\u003eMeasure cartridge length, outer diameter, and end-cap configuration.\u003c\/li\u003e\n  \u003cli\u003eRefer to your spa owner’s manual or take a photo of the installed cartridge for verification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The LVJUSEN PRB50-IN is ideal for spa owners who want a cost-effective, reusable replacement cartridge that fits many mainstream hot tub models and maintains clear water with straightforward upkeep. Choose this cartridge if you need a 50 sq ft replacement that balances fine filtration, easy cleaning, and broad compatibility — confirm your model and dimensions before purchase to ensure a proper fit.\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: Is the LVJUSEN PRB50-IN compatible with Unicel C-4950?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it is designed as a direct replacement for Unicel C-4950 and several equivalent 50 sq ft cartridges.\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 spa filter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Rinse monthly and deep-clean as needed; replace approximately every three months with typical use.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"LVJUSEN","offers":[{"title":"Default Title","offer_id":56831161303380,"sku":"B0D5H6TDPG","price":79.19,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/lvjusen-prb50-in-front-packaging.jpg?v=1787012193","url":"https:\/\/gardenluxe.co.uk\/products\/lvjusen-prb50-in-50-sq-ft-hot-tub-filter-cartridge-20-micron-trilobal-media-washable-replacement-for-unicel-c-4950","provider":"Gardenluxe Uk","version":"1.0","type":"link"}