Pentek (143339) Head Nut Gasket Kit for ST-1, ST-2, and ST-3 Sensafe (486905) LeadPaintCheck Reagent Set; LeadQuick or as a post-filter to

or as a post-filter to polish treated water before the faucet

ion exchange resins

Verify your housing model and plumbing configuration before ordering

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and leak-free operation under pressure

Pentek (143339) Head Nut Gasket Kit for ST-1, ST-2, and ST-3 Sensafe (486905) LeadPaintCheck Reagent Set; LeadQuick or as a post-filter toPentek Replacement Parts Pentek 143339 Head Nut Gasket Kit Genuine OEM gasket kit engineered for ST 1, ST 2, and ST 3 stainless steel filter housings Prevents leaks and system failures Maintains cap integrity Genuine Pentek OEM The Pentek 143339 gasket kit is manufactured to exact specifications for the ST series stainless steel housings. Regular replacement of these critical seals prevents unexpected shutdowns and maintains consistent water flow.