ReplacementBrand Replacement for Aqua-Pure, Culligan, Pentek OR-100 Lubricated O-Ring fits Big Blue 10 in. and 20 in. Whole House Systems

For use in Big Blue whole house water filtration system housings, the OR-100 ReplacementBrand lubricated O-ring helps ensure a tight seal between your systems housing sump and cap, preventing risk of leakage. For best results, use silicone lubricant when installing this part and replace every 2 filter changes. Stock up on the O-rings your Big Blue housing needs by adding the OR-100 from ReplacementBrand to your cart today.