This brand new aluminum High Pressure Nitrogen Tank is produced from high strength aluminum alloy 6061-T6, and is popular because it is not as heavy as steel tanks and does not rust. The service pressure is up to 2216 PSI/153 BAR. This cylinder is stamped with required U.S. Department of Transportation and Transport Canada markings. The 580 valves are CGA approved, and have a female thread for nitrogen regulators. PLEASE NOTE: This tank ships empty and will need to be filled before use.