Anvil 8700124251, Malleable Iron Pipe Fitting, 90 Degree Elbow, 1" NPT Female, Galvanized Finish 90-degree elbow for changing flow direction Female National Pipe Taper (NPT) threads for connecting male threaded pipes Made from malleable iron for use with gas, oil, and water applications National Pipe Taper (NPT) threads for creating tighter seals than straight threads Galvanized finish helps resist rust in water, air, and steam applications