Pentek (143216) O-Ring for ST-1, ST-2, and ST-3 10 inch x 4.5 inch Big Blue Filters2763 ensuring it seats properly on

ensuring it seats properly on the center post or sump bottom

Calibrate pH meters weekly when performing daily measurements to maintain accuracy in critical applications

Proprietary blend

Clean housing sump with mild soap and water

Integrated pressure tank stores boosted water at system pressure and supplies peak demand without immediate pump activation

Pentek (143216) O-Ring for ST-1, ST-2, and ST-3 10 inch x 4.5 inch Big Blue Filters2763 ensuring it seats properly onPentek 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