💧 Culligan 38 Replacement Captain Ring: The Ultimate Solution for Your Water Filtration System! Review

Part: Pentek Water 151121 (3 pack). Direct replacement for the following part numbers: Pentek 151121; American Plumber W38-OR , 152031; Ametek 151121; Campbell 10800-034; Culligan OR-38; Watts WP113029, 113029, OR-4. Compatible with the following water filter models: Pentek #5 and #10 Slim Line Housings, Pentek 3/8" Inlet/Outlet Slim Line Housings with a 3.5" diameter housing sump, Pentek 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 has an inside diameter of 3.36" (about 3-3/8") and thickness of 0.14" (just over 1/8"). Material: Buna-N (nitrile butadiene rubber). Manufactured and Warrantied by Captain O-Ring LLC, with decades of experience in the sealing and chemical industry.