Anvil 8700120507, Malleable Iron Pipe Fitting, Tee, 3/4" NPT Female, Black Finish Tee to connect and branch three pieces of pipe Female National Pipe Taper (NPT) threads on all three 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