Anvil 8700167599, Malleable Iron Pipe Fitting, Cross, 3/4" NPT Female, Black Finish Cross for connecting and branching four pieces of pipe Female National Pipe Taper (NPT) threads on all four ends for connecting to male 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