Key features

• •Sturdy Material: The 36 inch hose is braided by excellent stainless steel and is pressure, strong, safe and reliable. The refill adapter is equipped with a pressure gauge and has 2 on-off valves (for filling and venting) for easy and safe use
• •Inlet Thread: Filling adapter can be used to refill small CO2 tanks from larger CO2 tanks, the filling adapter is [US CGA-320(G1/2)], only suitable for the United States, Canada, not suitable for UK, Germany and other countries, if you are giving it as a gift, please make sure to be clear
• •Outlet Thread: The outlet thread for connecting the CO2 cylinder is TR21-4, which is suitable for most soda CO2 bottles (FIZZI/ONE TOUCH/JET blue cyclinders), not suitable for CO2 cylinders other than TR21-4 or clip-on design, especially not suitable for paintball tanks, as well as TERRA/ART/DUO/GAIA series water dispenser, they look similar, but the threads are not the same, they are not universal, please confirm before purchasing
• •Precautions: It is recommended to freeze the small cylinders for a few hours before filling, as it will be easier to fill them with more gas.If the vial thimble is too thick and short to be inflated, the hose will expand, please replace the thin thimble bottle. The large cylinder should have sufficient pressure. If there is no siphon or liquid CO2 in the large cylinder, the CO2 tank needs to be inflated upside down or on its side, please read the instructions carefully
• •Professional Support: We are very confident in this product, so we provide one year product support and professional guidance, for whatever reason, you are not satisfied or have questions about the product, please let us know, you will get a satisfactory answer