... easy installation.Includes a 0-160 PSI pressure gauge.Air Inlet NPT: ¼".Air Outlet NPT: ¼" Contact:We will reply your email or fax ... products. Our production include, AIR TOOLS,CAR DETECTOR,AIR ACCESSORIES ,COUPLERS,AIR PU HOSE,PRESSURE PAINT TANK,AIR REGULATORS,AIR BLOW GUNS And so on ...