ITEM NAME:Heavy Duty Air Compressor Pressure Switch Control Valve 90 PSI -120 PSI HS B5T9 Heavy Duty Air Compressor Pressure Switch Control Valve 90 PSI -120 PSI HS B5T9 This is a great switch for miniative air compressor. It can help to save electric energy of the air compressor. Easy to install and convenient to use. There is a red ON/OFF switch knob; Auto control, Auto load/unload. Four female air inlet ports with approx. 0.4 inch / 11 mm thread diameter. Color: Black Voltage rating:110 -420V Current rating: 16A Maximum Pressure: 6-12.5 Pa Material: metal Size:125 x 80 x 50mm Net weight:314g Package content: 1x Air Compressor Switch Control Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.