Feature:1. CO2 refilling adapter is easy to use and can fill carbon dioxide into a soda bottle.2. CGA320 // TR214 threaded interface, there will be no leakage when connected to the cylinder.3. Soda accessories, easy to install and remove, convenient for filling with carbon dioxide.4. Integrated safety pressure valve, adjustable valve pin to ensure compatibility with any cylinder valve.5. Use highquality aluminum alloy material, high hardness, wear resistance and corrosion resistance.Specification:Item Type: CO2 Refill AdapterMaterial: Aluminum AlloyColor: SilverThread Interface: CGA320 // TR21-4Weight: Approx. 95g / 3.4ozThe refill adapter can be used to refill a small carbon dioxide tank from a larger carbon dioxide tank. The adapter is American CGA-320 (G1/2). Make sure that the thread type of the carbon dioxide tank is the same.Applicable Countries: The United States, Canada, Brazil, Colombia, the Philippines (some countries are also called G1/2-14/0.825-14NGO)How to Use:1. Use an appropriate wrench to connect the regulating valve to the adapter.2. Hold the cylinder firmly with one hand, and fasten the adapter/regulator to the cylinder with a wrench.3. The pin in the adapter will depress the valve on the cylinder and open the gas flow.4. Continue to tighten the adapter on the cylinder..Package List:1 x Valve1 x Gasket1 x Right Angle Wrench2 x Sealing Ring1 x Screw