DeVilbiss HAV-501-B – Air Pressure Regulator with Gauge for Spray Guns
DeVilbiss HAV-501-B GENUINE Devilbiss Air Regulator. DeVilbiss HAV-501-B Gun Gauge / Regulator. HAV-501-B Air Regulator / Gauge. Increase & decrease working pressure at the gun. Fits neatly in line at the gun air inlet 1/4” thread.