For low-pressure plumbing applications including air, water, natural gas, and steam. Galvanized to resist rust and corrosion. Item: Reducing Tee Pipe Fitting Material: Galvanized Malleable Iron Fitting Schedule/Class: Class 150 Pipe Size - Pipe Fitting: 3" x 3" x 1-1/4" Fitting Connection Type: FNPT Standards: UL Listed, FM Approved, Meets ASME B16.3, ASTM A-197 Max. Pressure: 300 psi @ 150 Degrees F WOG Saturated Steam Pressure: 150 psi @ 350 Degrees F Temp. Range: -20 Degrees to 350 Degrees F