Features Galvanized to resist rust and corrosion. Nominal Pipe Size / 3/8 in Pipe Fitting Material / Malleable Iron Finish/Coating / Galvanized Class / Class 150 Fitting Connection Type / Male NPT Includes Pre-Applied Thread Sealant / No Includes Seal / No Standards / ASME B16.3 and B16.4, ASTM A-197, ASTM A47, FM Approved, NSF-61 and AB1953 Listed, UL Listed