Pentair Black Disinfection O-ring
Easy Replacement: remove old o-ring, clean out groove, lubricate new o-ring with clean silicone grease and press o-ring into housing groove ensuring its completely level
For use with Pentair OMNIFilter BF7, BF35, PB35, PB55 and BF55 Heavy Duty Housings
Fits most heavy duty whole home housings from other major brands
