3-1/2" x 7-1/2" XH Black Pipe Nipple Schedule 80 Nipples accurate threads are machined that

accurate threads are machined that comply with the precise standards developed by the Amerian Society of Mechanical Engineers (ASME) and published as an American National Standard

material: Black Steel connection: Threaded Thread Type: Male Features: Meets or exceeds all applicable ASTM and ANSI standards Stocked from 1/8" through 6" diameters

1-1/2" IPS Style 90 Low Pressure Steam Compression Dresser Coupling for Steel Pipe

2" IPS Style 38 Water Service Coupling for Steel Pipe (Plain)

Certified for potable water and hydronic applications

3-1/2" x 7-1/2" XH Black Pipe Nipple Schedule 80 Nipples accurate threads are machined thatmaterial: Black Steel, Extra Heavy, Schedule 80 connection: Threaded Thread Type: Male Features: Meets or exceeds all applicable ASTM and ANSI standards Made in The U. S. A.