Matco-Norca NG0372 GN12X72 40 NIPPLE GAL (5 PER CASE)Nipple Fitting Type Pre-Cut Size A 12 Inch Size B 12 Inch Overall Length 72 Inch Schedule 40 S End Connection Male Threaded x Male Threaded Material Steel Material Specification ASTM A53A53M Process Welded Finish Galvanized Applicable Standard ASTM A733, ASME B1.20.1, ANSI, NSF 61372, ISO 9001Lead-Free