Reducing Tee Body Material Malleable Iron Class 150 Pipe Size 1/2 in x 3/8 in x 3/8 In. Connection Type FNPT Max Pressure 300 psi@150 Degrees F Saturated Steam Pressure 150 psi Temp Range -20 Degrees to 150 Degrees F Standards UL Listed FM Approved Meets ASME B16.3