Cyl-Tec 20 lb CO2 Tank - Aluminum Cylinder with CGA320 Valve and Carry Handle The Cyl-Tec 20lb CO2 tank ships ready to fill (empty). Federal law requires that the tank ship unfilled. Once filled this tank will be able to dispense 20-25 beer kegs. This tank can be used for other applications including hydroponics, sodastream refills, etc Certified for use in the U.S.(DOT) and Canada (T.C.). The tank is stamped with these markings. This tank has 1800 PSI service pressure. Made from high quality 6061-T6 brushed aluminum to ensure durability. Aluminum tanks will not rust as steel tanks do over time Includes durable carry handle to make transportation easier. Also includes new brass CGA 320 CO2 valve. 320 valves are approved by the Compressed Gas Association (CGA) and have a male thread for CO2 regulators.