Features: 1. Auto control.Auto load/unload. 2.There is a red ON/OFF switch knob. 3.Durable and practical. Easy to install and remove. 4. Made of durable material,anti-corrosion and wear resistance. Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement Specification: Maximum Voltage: 240 V Max AMP Rating: 20 A Pressure range: 90~120 PSI (Pressure lower than 90 PSI, turn on the compressor. Pressure over 120 PSI, turn off the compressor. Not Adjustable.) Gauges Pressure: 0~180 PSI Color:As the picture shown Male Thread Dia: approx 21mm--1/2 inch NPT(to air compressor) Valves Male Thread Dia: 13mm--1/4 inch NPT Size:As the picture shows includes:1x Control Valve", When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!