Features Galvanized to resist rust and corrosion. Pipe Fitting Material / Malleable Iron Finish/Coating / Galvanized Class / Class 150 Fitting Side A Nominal Pipe Size / 3 in Fitting Side A Gender / Female Fitting Side A Type / NPT Fitting Side B Nominal Pipe Size / 2 in Fitting Side B Gender / Male Fitting Side B Type / NPT Standards / ASME B16.3, ASTM A197, ASTM A47, FM Approved, NSF 61, UL Listed