Check the listing for details. GRAINGER APPROVED 589-080GR Black Pipe Nipple,Threaded,2-1/2x8 In 2WV68. Condition: New. Listed at 53.28 USD. Nipple, Application Air, Natural Gas, Non-Potable Water, Oil, Steam, Finish/Coating Black, Fitting Compatibility Class 150, Gravity Flow No, Inside Diameter 2 1/2 in, Manufacture Location Globally Sourced, Material Steel, Material Grade Grade B, Maximum Operating Pressure 945 psi @ 650 Degrees F, Maximum Operating Temperature 600 Degrees F, Maximum Steam Pressure 945 psi @ 650 Degrees F, Metal Pipe Construction Welded, Minimum Operating Temperature -20 Degrees F, Nominal Pipe Size 2 1/2 in This Grainger Approved nipple has a weld bead on the inside and is NPT threaded at both ends. Model is interchangeable with black cast iron or steel and is suitable for low-pressure plumbing applications including air, water, oil, natural gas, and steam. Certified for use in potable water applications.