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The 3M Cuno CFS117 is a compatible water filter that replaces the 3M Cuno CFS186-A and fits the water filter housings:
The 3M Cuno CFS117 carbon block water filter is a replacement drop-in style water filter cartridge that fits the CFS11, CFS01, and CFSBCI-1 filter housings from 3M Cuno. This 9 3/4" water filter features a 5 micron rating for the reduction of the taste and odor of chlorine in your water. This 5 micron water filter also features high quality carbon block media and a flow rate of 1.67 gallons per minute. This carbon block filter can also be used as a retrofit cartridge to upgrade your current water filtration.
3M Cuno 3M Cuno CFS117 Specifications: