ASC Anvil 2"x2-1/2" Galvanized Nipple. Made of welded steel with a hot dipped galvanized finish, this standard type nipple meets ASTM A/53 standards It features a 2 inch MIP fitting size 1 and a 2 inch MIP fitting size 2. The length of the nipple is 2-1/2 inch. It is manufactured to include no more than 0.25 % weighted average lead content on wetted surfaces.