The 3M Cuno SWC900 is the correct replacement filter for the following water filtration systems:
The 3M Cuno Scale Reduction Filter for CFS6090 System is a replacement water filter cartridge for the 3M Cuno CFS6090 water hardness reduction system. This Cuno filter cartridge reduces water hardness and prevents the build-up of lime scale. This scale inhibitor water filter has a flow rate of 0.5 gallons per minute (gpm) and a capacity of 900 grains. In addition, this scale reduction filter features a Sanitary Quick Change (SQC) design for quick and easy filter replacements without risk of contamination.
3M Cuno Scale Reduction Filter for CFS6090 System specifications: