The 3/4" x 9" Black Pipe Nipple is a threaded pipe fitting made from black malleable iron. It has National Pipe Thread ends and is 9 inches long. This nipple allows you to extend pipe runs and make connections. It is rated for 300 psi working pressure at up to 250°F. The nipple is black in color and weighs approximately 0.75 lbs. This product can be used in steam, water, air, and oil applications. It meets ASTM A197 specifications.