Using pressurized liquid CO2 the POWERTANK stores 20 times the energy of a 5 gallon air tank filled to 125 PSI. Use it just as you would an onboard air system to air up tires or run air tools. The POWERTANK system includes the aluminum tank, CO2 regulator, aluminum handle/guard, and a 25 foot coiled hose with fittings. Mounting brackets and additional accessories are sold separately. CO2 is not included and can be filled at a local welding supply or fire extinguisher shop.