Goodall 450 Amp 12 Volt Start-All with Air-All 13 CFM 155 psi Air Compressor is ideal for most cars, pick-up trucks and school buses. Voltage is regulated to protect on-board electronics, Antizap Surge protection is included. 30' of 1/0-gauge welding cable allows excellent access to vehicles. Polarity and low battery LED indicators confirm proper connections. Compressor is 18 CFM @ 100 psi. Electric start Briggs & Stratton OHV engine. Dimensions are 31" L x 25" W x 29" Tall. Unit weighs 450 lbs. Air Tanks are available as an option.