Compressor Air Tank Kit Comes with 0.8 Gallon (3 liter) air tank, heavy duty compressor, air pressure gauge and pressure switch, hose and mounting hardware. Max Working Pressure: 150 PSI Tank Capacity: 3L (0.8 Gallon) Works On-Board Air System For All 12v Vehicles Power: DC 12 V Max Amp Draw: 23 Amps Pressure Switch: 90-120 PSI Air Hose: 16 FT 3/16" ID - 1/4" OD Brand New Air Tank & 150 psi Compressor air supply system. Pre-installed tank with air pressure switch & gauge makes it easy to be installed. This Air kit is designed for use with any high-pressure Air Horns that require an onboard air system. And for many other uses that require air pressure supply. Ideal for any 12 volt vehicles such as SUV, Trucks, RV, Marine and more. This already has attached a pressure switch and an air gauge. It measures 15-3/4" long x 5-1/8" wide x 6-3/4" high. It also includes ID tubing, a 1/4" male connector fitting, mounting hardware, fuse and fuseholder.