2009-08-29.4 Brass Air Swivel Connectors 90 Degree Angle 360 Spin.1/4 npt fits all 3/8 air hoses. Air tool accessories 4 brass air swivel connectors 90 degree angle 360 spin. 90 degree angled connector is great for putting in air tools to keep the hose out of your way. Connector freely spins 360 degrees which helps keep the iar hose from getting twisted.