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