Pentek (143216) O-Ring for ST-1, ST-2, and ST-3 10 inch x 4.5 inch Big Blue Filters2763 Proprietary blend

Proprietary blend

32mm diameter with optimized slot pattern

ensuring it seats properly on the center post or sump bottom

contact us before ordering to confirm the correct post filter configuration for your specific AC-15 model

ResinTech SIR-110-HP strong base anion resin exhibits unusually high selectivity for perchlorate ions while maintaining low affinity for multivalent ions

Pentek (143216) O-Ring for ST-1, ST-2, and ST-3 10 inch x 4.5 inch Big Blue Filters2763 Proprietary blendPentek 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