Compatibility: This 51120 O-Ring is suitable for Pentek/Pentair 3G Standard SeriesTraditional Standard Series and Valve-In-Head VIH Series Water Filter Housings, suitable for Culligan HF-150, HF-150A, HF-160, HF-360; for Ace Hardware 45025, 46764, 46764; American Plumber W34-PR, WC34-PR, WV34, WVC34; for Ametek Kleen-Plus PSCL-SI / PSCL-S1, PS-OO / PS-00, PVHCL-SI / PVHCL-S1 and other models Replace parts: A water filter part numbers 151120 O Ring;for Ace Hardware 46766;for American Plumber 152030, W34-OR,for Ametek Kleen-Plus 151120-03, OR-34; for Culligan 01019184, 151120-27; for DuPont WFAO150; for Everpure EV3112-40; for Hydrotech 151120; for Pentek 151120; for Omnifilter 151120, OR-34, Pura 151120; for US Filter OR-34, etc Versatile: Supports a variety of water filter models, such as Omnifilter WH1, WH5, WH12, OB1 (A series), U25 (E series), and Pentek Pentair 151120 compatible models, providing a reliable solution for home and commercial use Sealing performance: This water filter o ring is made of quality rubber material with strong sealing performance, which reduces the risk of leakage in the water filter housing and improves the filtering effect Durability: Designed for daily use, the 151120 O-Ring is durable and elastic, suitable for long-term replacement and prolongs the service of the water filter The O-ring supports replacement of water filter accessories, compatible with Ace Hardware American Plumber Ametek Kleen-Plus DuPont, Everpure Omnifilter etc to meet diverse water filtration needs. Made of quality rubber material, it has good elasticity and corrosion resistance, which can reduce housing leakage and prolong the service of the water filter