5-Pack 151121 OR-38 O-Ring Gasket Seal Replacement for Pentek/Pentair Culligan Water Filter Slim Line Housings

?Pentek 151121 / Culligan OR-38 Replacement Water Filter Housing ORing Gasket Seal The Pentek 151121 o-ring is compatible with the following filter models: ?Pentek #5 and #10 Slim Line Housings, 3/8" Inlet/Outlet Slim Line Housings with a 3.5" diameter housing sump, and 3G housings Ace Hardware 45335, 45449, 48166, 49562, 4001699, 4158515 American Plumber WLCS-500, WRO-3167 Ametek Kleen-Plus / Pentek CSL-CIK, CCF-201, CTR-CMR-10, PSCL-C2, US-560, US-560K, SY-5167, SY-5197 Culligan RVF-10, US-316, US-550 US Filter RO-2127, RO-2300, RO-2300-A, RO-3167 ?The 151121 o-ring is a direct replacement for the following other part numbers: American Plumber W38-OR , 152031 Ametek 151121 Culligan OR-38 Pentek 151121 ?The 151121 O-Ring is used to seal Pentek and Culligan Slim Line Filter Housings (also manufactured by several other brands, see list above) which are used for drinking water purification, swimming pools, industrial purposes, as well as other applications. These o-rings are made of nitrile butadiene rubber (Buna-N) which offer superior flexibility and resistance to tearing during installation and long-term use.