Features: 1. Automatic control with auto load/unload function. 2. Equipped with a red ON/OFF switch knob. 3. Durable and practical design. Easy to install and remove. 4. Constructed from durable material, offering anti-corrosion and wear resistance. Notice: Actual color may vary slightly from the image due to differences in monitor displays and lighting conditions. Please allow 1-3 cm deviation due to manual measurement. Specifications: Maximum Voltage: 240 V Max AMP Rating: 20 A Pressure Range: 90–120 PSI (Compressor turns on when pressure drops below 90 PSI; turns off when pressure exceeds 120 PSI. Not adjustable.) Gauge Pressure Range: 0–180 PSI Color: As shown in picture Male Thread Diameter: Approx 21 mm – 1/2 inch NPT (connects to air compressor) Valve Male Thread Diameter: 13 mm – 1/4 inch NPT Size: As shown in picture Includes: 1 x Control Valve