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