NIBCO Fig No PC633-3, 1-1/2 in. Copper Union Press x Female Threaded, Leak Detect

The NIBCO Press System wrot copper union features an inboard bead and EPDM O-ring. Simply applying pressure from a press tool tightens the O-ring onto the tube, ensuring a clean, watertight seal in seconds with no flame, solder or flux. The union has press connections and a female NPT thread. It is used to allow repair to the line without damage between a press connection and threaded connection.