Reducer Body Material Galvanized Malleable Iron Pipe Size 1/2 in x 3/8 In. Connection Type FNPT Max Pressure 2000 psi @ 150 Degrees F WOG Saturated Steam Pressure 300 psi at 550 Degrees F Class 300 Standards ASTM A-197 ASTM A47 ASME B16.3 and B16.4 UL Listed FM Approved