Tube to Weld Tube to Weld Male Pipe Weld Connector Part Number: U-MPWC Brand: Unilok Male Pipe Weld Connector Male Pipe Weld Elbow Part Number: U-MPWE Brand: Unilok Male Pipe Weld Elbow Tube Socket Weld Elbow Part Number: U-TSWE Brand: Unilok Tube Socket Weld Elbow Tube Socket Weld Union Part Number: U-TSWU Brand: Unilok Tube Socket Weld Union 1