Pipe Application Air Gas Potable Water Finish/Coating Galvanized Fitting Compatibility Class 150 Gravity Flow No Inside Diameter 1 1/4 in Manufacture Location Globally Sourced Material Steel Maximum Operating Pressure 300 psi @ 350 Degrees F Maximum Operating Temperature 600 Degrees F Maximum Steam Pressure 1572 psi @ 650 Degrees F Metal Pipe Construction Seamless Minimum Operating Temperature -20 Degrees F Nominal Pipe Size 1 1/4 in Outside Diameter 1 21/32 in