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Pentek # 151121 O-Ring For Slim Line Water Filter Housing Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. O-Ring For Slim Line Water Filter Housing. Buna-N FDA Grade. (Slim Line Housings Use A 3 1/2" diameter "O" Ring) Ametek # 151121 Same as Culligan OR-38 O-ring.
American Plumber Dual Water Filter WLCS-1000 Replacement Water Filters, O-rings, Faucets, Housing Spanner Wrenches and Water Filter Drinking System Parts. Low prices and same day shipping since 1999.