Star Rite Tank O-Ring, Suitable For Use With: Water Filter. OMNI Filter's K4 under sink drinking water O-ring kit is for use with OMNI Filter housings OT32, CBF1, CBF3, USM3, SFM2, OCT2, RO2000 and RO2050. Kit contains O-rings that fit most Culligan and DuPont under sink filter systems. Kit contains 4 different sized O-rings and silicone lubricant.
Replacement o-ring kit for OMNIFilter undersink systems
Make cartridge changes easier by replacing the o-ring at least once a year
For use on OMNIFilter CBF1, CBF3, SFM2, USM2, OCT2, OT32, RO2000, RO2050 and U30 housings
Also fits DuPont and Culligan undersink filter systems
Includes 4 commonly used o-rings