American Plumber, Culligan, Pentek OR-233 O-Ring (3-Inch Diameter)

The OR-233 O-Ring has been branded under Ace Hardware, American Plumber, Ametek, Culligan, Pentek, and USFilter Plymouth Products. The OR-233 o-ring can be used with many undersink housings including Ace Hardware, American Plumber, Ametek, Culligan, MasterPlumber, Pentek, and USFilter Plymouth Products. The OR-233 o-ring should be replaced every two filter changes or if there is damage to the o-ring. O-ring gasket should be well lubricated with silicone lubricant to prevent leaks in the water filtration system.