O-Ring 151122 3 Pack for Pentek Big Blue American Plumber Culligan Water Filter
OE: 151122. for Culligan HD-950, HD-950A. for Pentek #10 and #20 Big Blue opaque filter housings with 1" or 1-0.5" inlet/outlet connections. for Pentek 150237, 150239, 150469, BBFS-22, BBFS-222. for Ace Hardware 49561.