ASC Anvil 1/4"x1-1/2" Galvanized welded steel nipple has a hot dipped galvanized finish for corrosion resistance, meeting ASTM A/53 standards. Standard Schedule 40 nipple. The fitting size on both ends is 1/4" MIP (male iron pipe). Manufactured to include no more than 0.25 % weighted average lead content on wetted surfaces.