New 3812 Npt Male Pipe Swivel 90 Elbow Fitting. They are swivel and quick connect. Male pipe swivel 90° elbow.Nylon rockwell r 78, polyethylene shore d 44, polyurethane shore a 95. Air tool accessories new 3812 npt male pipe swivel 90 elbow fitting. Air, noncombustible gases, nonreactive gases, water.