Pentek (143216) O-Ring for ST-1, ST-2, and ST-3 20 inch x 4.5 inch Big Blue Filters2043 Fine sediment filtration

Fine sediment filtration

Installing Your Check Valve

and sulfur at the source before they reach your skin and hair

Cold water use

Secure the bypass assembly using the provided hardware

Pentek (143216) O-Ring for ST-1, ST-2, and ST-3 20 inch x 4.5 inch Big Blue Filters2043 Fine sediment filtrationPentek Replacement O Ring Pentek 143216 O Ring for ST 1, ST 2, and ST 3 Housings Genuine OEM rubber gasket engineered to maintain a leak proof seal in Pentek stainless steel filter housings OEM Part Food Grade Safe OVERVIEW Why This O Ring Matters The Pentek 143216 is a precision molded rubber O ring designed specifically for the ST 1, ST 2, and ST 3 stainless steel filter housings. This isn't a generic gasketit's an exact fit replacement that