Use your CO2 regulator with a beer gas tank with this CO2 regulator to nitrogen adapter! This part is approximately 3 inches long and will adapt a female CGA-320 fitting (which is the standard fitting on a standard CO2 regulator) to a male CGA-580 fitting (which is the standard fitting on a beer gas tank). This way, you will be able to use your existing CO2 regulator on a beer gas tank without buying a new nitrogen regulator! This works great for the creamy beer enthusiast who occasionally uses beer gas! Please note that this connection should NOT be used with pure nitrogen due to the higher pressures that pure nitrogen is kept under. This should work great for most people who occasionally use beer gas to give their beers that extra creaminess!