Viking Horns V103C/1006ATK 5 Gallon Air Tank and 200 PSI Air Compressor Kit Air Tank Capacity: 5 gallon (18 liter) Tank Ports: four-1/8", two-1/4", one -3/8", one-1/2" Air Compressor: heasvy duty 12 volt 200 psi 100% duty cycle 240 PSI air pressure gauge & 200 PSI air pressure switch Sealed compressor and Oil-less Design, with thermal overload protection