ASC Anvil 1"x4" Galvanized Nipple. It is made from welded steel with a hot dipped galvanized finish, meeting ASTM A/53 standards. This standard Schedule 40 nipple with both fitting sizes 1 and 2 measuring 1 inch and connection types 1 and 2 being MIP. The length of the nipple is 4 inches. Manufactured to include no more than 0.25 % weighted average lead content on wetted surfaces.