Air Pressure Regulator HIGH FLOW HEAVY DUTY for compressor compressed air 1" FREE GAUGE New 1" Air Pressure Regulator 180 CFM flowrate w/ free gauge Free Shipping & Free Gauge & WALL MOUNTING BRACKET INCLUDED ADJUSTABLE TURN KNOB FOR FAST EASY PRESSURE ADJUSTMENT 1" INLET AND OUTLET PORTS, WITH ONE 1/4" GAUGE PORT, GAUGE INCLUDED MAX PRESSURE 300 PSI - HIGH FLOW