The Heavy Duty Onboard Air System comes complete with a super fast 400C, 33% Duty Cycle compressor at its heart that will fill the supplied 2.5 gallon tank from 110-150 PSI in approximately 45 seconds. Included is everything you'll need to add a reliable air source to your vehicle as well as inflate tires with the included clip-on air chuck. (For vehicles with up to 35-inch tires) Perfect for your trucks air bag setup!