10lb. Basic System Polished tank;POWERTANK system includes the aluminum tank, CO2 regulator, aluminum handle/guard, and a 25 coiled hose with fittings;Uses pressurized liquid CO2;Stores 20 times the energy of a 5 gallon air tank filled to 125 PSI;Mounting brackets and additional accessories are sold separately with Regulator Included Power Tank Power Tank 10lb. Basic System (Polished) - PT10-5200-PO PT10-5200-PO Compressed Air System