Anvil 8700128401, Malleable Iron Pipe Fitting, 45 Degree Street Elbow, 1/4" NPT Male x NPT Female, Galvanized Finish 45-degree elbow for changing flow direction Male National Pipe Taper (NPT) threads on one end and female NPT threads on the other for connecting pipes with different connections Made from malleable iron for tensile strength National Pipe Taper (NPT) threads for creating tighter seals than straight threads Galvanized finish resists rust in water, air, and steam applications