The NIBCO Press System copper 45-degree fitting elbow features an inboard bead and EPDM O-ring. Simply applying pressure from a pressing tool tightens the O-ring onto the tube, ensuring a clean, watertight seal in seconds with no flame, solder or flux. The elbow has a male fitting end and a press connection. The fitting provides a method of changing the pipeline direction by 45 degrees between a press connection and a fitting connection which can either be soldered or pressed.