ITEM NAME:Heavy Duty Air Compressor Pressure Switch 90-120 PSI 4 Port with Unloader Product Description Description: Heavy Duty Air Compressor Pressure Switch Control Valve 90-120 PSI 4 Port with Unloader + On/Off Lever Feature: - 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 - With a ON/OFF switch lever - With a unloader Specification: Default On(Cut-in) pressure: 90PSI Default Off(Cut-out) pressure: 120PSI Min On(Cut-in) pressure: 35PSI MAX Off(Cut-out) pressure: 150PSI DIFFERENTIAL: 30-40PSI POLE: 2 POLE RATING AMP RATING: 26A at 110/240V AC Maximum Voltage: 240V AC PORT: 1/4" NPT 4 Female Ports Note: 1. There may be slight size deviations due to manual measurement, different measuring methods and tools. 2. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor. Included: 1 X Air Compressor Pressure Switch.With a unloader. - It can help to save electric energy of the air compressor. - This is a great switch for miniative air compressor. Included: 1 X Air Compressor Pressure Switch. PORT: 1/4" NPT 4 Female Ports.