Features: 1Integrated safety pressure valve tightly connected no gas leakage. 2CO2 supplementary connector with 8mm male plug is a practical soda accessory. 3Adjustable valve pin ensures compatibility with any cylinder valve changes. 4Easy to use and connect carbon dioxide can be filled into soda bottles. 5Use highquality aluminum alloy material durable and corrosionresistant. Specification: Item Type: CO2 Adapter ValveMaterial: Aluminum AlloyColor: SilverFemale Thread: TR21-4Weight: Approx. 94g / 3.3ozHow 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 or wrench.3. The pin in the adapter will depress the valve on cylinder and open the gas flow.4. Continue to tighten the adapter on the cylinder. Package List: 1 x Adapter Valve1 x Gasket1 x Right Angle Wrench2 x Sealing Rubber Ring1 x Screw