This is an onboard air system from Viair and it usually takes the guess work from the installation of the sophisticated air system available today. The system usually comes complete with a long running 450C, a 100% duty cycle compressor that can fill the supplied 2.5 gallon tank in a minute. Unlike other systems in the market it can operate for longer periods without having to rest. It comes with everything that you might need to add a reliable air source to the vehicle as well as inflate tires with the clip on air chuck. It is a complete air source solution for vehicles with 37 inch tires. It can inflate a tire of 37 inches. It includes a heavy duty compressor air tank. It has a dash panel gauge with an on and off switch. It has a permanent magnetic motor. It is sealed and therefore it is dust and moisture resistant. It has an automatic reser thermal overload protector. it also comes with a one year warranty.