Air Pressure Regulator for compressor compressed air 1/2" FREE GAUGE New 1/2" Air Pressure Regulator 140 CFM flowrate w/ free gauge Free Shipping & Free Gauge & WALL MOUNTING BRACKET INCLUDED ADJUSTABLE TURN KNOB FOR FAST EASY PRESSURE ADJUSTMENT 1/2" INLET AND OUTLET PORTS, WITH ONE 1/4" GAUGE PORT, GAUGE INCLUDED