Air Command™ Air Control Systems increase the convenience of air adjustable systems by allowing drivers to adjust the ride for various load and road conditions at the flip of a switch or even a click on a remote.Xtra: 2 year warranty, includes 9499 Compressor, Half-Gallon Air Tank and 9006 Air Hose, best usage same as Heavy Duty, plus motorcycle tire, golf cart tire or trailer tire inflation. Includes:1/2 gallon air tank25' extension air hose (9006)All hardware needed for install2 year warranty