151120 o-ring for Pentek Water Filter Housing （4 pack） Size:Approximately 3.9" ID x4.15" OD x 0.14" Thickness Replacement for Part Numbers: Ace Hardware 46766, American Plumber 152030, W34-OR, Ametek Kleen-Plus 151120-03, OR-34, Culligan 01019184, 151120-27, DuPont WFAO150, Everpure EV3112-40, Hydrotech 151120, Pentek 151120, Omnifilter 151120, OR-34, Pura 151120, US Filter OR-34 Compatible with Select Ametek, Ace Hardware, DuPont, Hydrotech, Omnifilter, Pura, Aqua-Flo and US Filter models 151120 Replacement American Plumber W34-OR Filter O-Ring for Pentek Water Filter Housing 152030 O-Rings （4 pack）