For low-pressure plumbing applications including air, water, natural gas, and steam. Galvanized to resist rust and corrosion. Pipe Fitting Material / Malleable Iron Finish/Coating / Galvanized Class / Class 150 For Pipe Schedule / 40 Fitting Side A Nominal Pipe Size / 3/8 in Fitting Side A Gender / Female Fitting Side A Type / NPT Fitting Side B Nominal Pipe Size / 1/4 in Fitting Side B Gender / Female Fitting Side B Type / NPT Maximum Operating Pressure / 300 psi @ 150 Degrees F Color / Silver Application / Air, Oil, Non-Potable Water Standards / ASME B16.3, ASTM A197, FM Approved, UL Listed