Nipple Application Air Natural Gas Non-Potable Water Propane Steam Fitting Compatibility Schedule 40 Gravity Flow No Inside Diameter 3 1/16 in Material Stainless Steel Material Grade 304 Maximum Operating Pressure 150 psi Maximum Operating Temperature 450 Degrees F Metal Pipe Construction Welded Minimum Operating Temperature -60 Degrees F Nominal Pipe Size 3 in Outside Diameter 3 1/2 in Overall Length 5 in Pipe Weld Type Continuous Weld Schedule Schedule 40