Hi Sayurasem, Thank you for your inquiry. As long as your paintball tank is equipped with the "pin" valve (http://www.amazon.com/AQUATEK-CO2-Pa...5954611&sr=8-1
), you can attach our adapter onto your tank. However, please remember to screw the adapter onto the CO2 regulator, then, screw it onto the paintball tank. Otherwise, it will start to release CO2 before the regulator is attached. Thank you for your question.
Aquatek of California