Tee, Pipe Fitting Material Black Forged Steel, Fitting Schedule/Class Class 3000, Pipe Size - Pipe Fitting 3 in, Fitting Connection Type FNPT, Standards ASME B16.11, ASTM A106, B1.20.1, Max. Pressure 1000 psi @ 150 Degrees F, Saturated Steam Pressure 300 psi @ 550 Degrees F, Outside Dia. 4 3/4 in, Number of Holes 3, Temp. Range -20 Degrees to 550 Degrees F