Anvil 8700128310, Malleable Iron Pipe Fitting, 45 Degree Street Elbow, 1-1/4" NPT Male x NPT Female, Black 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 different types of pipes Made from malleable iron for tensile strength National Pipe Taper (NPT) threads for creating tighter seals than straight threads Black finish resists rust in oil and gas applications