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Coupling for connecting two pipes going in the same direction
Female National Pipe Taper (NPT) threads on both ends for connecting two male threaded pipes
Made from steel for greater rust resistance than iron
NPT threads for creating tighter seals than straight threads
Meets specifications ASTM A53 and ASME B 1.20.1 for quality assurance
Made of malleable iron, which has high tensile strength, and a galvanized finish that resists rust in water, air, and steam applications. National pipe threads for creating tighter seals than straight threads. 1/8" Galvanized Made of malleable iron Merchant couplings are steel & threaded end to end. Made in USA.