Abstract: The invention relates to a small utility air storage tank that includes a pressure gage and an air flow regulator. The storage tank may be used alone or in conjunction with a second storage for storing and supplying a larger amount of air for use with an airbrush or air blower. The storage tank and second storage tank may be filled with air from an air source. One of the storage tanks may be filled by discharging gas cartridges into the storage tank. An auxiliary tank may be attached to the storage tank for use in sand blasting or to create a vacuum.