About This

• TWO CARTRIDGES, 5 MICRON CARBON BLOCK – Two coconut shell carbon block cartridges for the filter positions in a RainSoft UF50 class system. Compressed carbon block holds the media in a fixed bed so water passes through it evenly rather than finding low-resistance paths, and the 5 micron rating sets how fine a particle the block holds. Standard 2.5 by 9.75 inch cartridges that drop into the housings already on your unit.
• REDUCES CHLORINE, TASTE AND ODOR – The carbon stage reduces chlorine along with the tastes and smells that come with it. It also protects what sits behind it: chlorine shortens reverse osmosis membrane life more than anything else in normal household water, so keeping these cartridges fresh is what lets a membrane reach its full service life. This pack is cartridges only — there is no membrane and no housing wrench.
• CHECK YOUR SYSTEM BEFORE YOU ORDER – Fits systems numbered UF50, UF50N, UF50T, UF22, UF22T, 21176, 21179 and 21191. It does NOT fit the Ultrefiner II, which changed in 2013 and takes a different cartridge — if your system was installed after that, check the model plate before ordering. Count your housings too: this pack covers two cartridge positions.
• COMPATIBLE REPLACEMENT, NOT AN ORIGINAL MANUFACTURER PART – CFS is an independent brand. This is a compatible replacement, not an original manufacturer part, and manufacturer names and part numbers are used for reference only to show what it fits: UF-50, UF50, UF-50T, UF50T, UF50N, UF22, UF22T, 21176, 21179, 21191.
• MATCH THE SCHEDULE TO THE STAGE – Most households change these every six to twelve months depending on use and water quality. Replace them on schedule even if the water still tastes fine, because a spent carbon stage stops shielding the membrane and the membrane is the expensive part of the system. Flush the new cartridges before you drink from the system.

Overview

• Material : Carbon
• Item Weight : 1.7 pounds
• External Testing Certification : NSF
• Product Benefits : Removes bad taste, odor, and chlorine for cleaner, better-tasting water; Provides longer-lasting filtration with larger surface area Removes bad taste, odor, and chlorine for cleaner, better-tasting water; Provides longer-lasting filtration with larger surface area
• Brand : CFS