If you want to set up a draft dispensing system, you need a dependable CO2 tank to provide the appropriate amount of pressure for your lines. This CO2 cylinder is produced from high strength aluminum alloy that is lighter than steel and doesn’t rust. Remember, the tank must be used in a fully upright position, so do not tilt it or lay it on its side. It’s easy to fill; just check out your local listings under “Gas,” or try local fire extinguisher supply or welding supply companies. Please note: Due to Federal regulations, we cannot ship this tank filled. In other words, when you receive this tank it will be EMPTY.