Reducer Body Material Black Malleable Iron Class 300 Pipe Size 1-1/4 in x 3/4 In. Connection Type FNPT Max Pressure 1500 psi@150 Degrees F Saturated Steam Pressure 300 psi Temp Range -20 Degrees to 550 Degrees F Standards ASTM A-197 ASTM A47 ASME B16.3 and B16.4 UL Listed FM Approved