Features: 1It has good sealing performance no gas leakage and can be used for a long time. 2With superb craftsmanship and stable inflation it is an ideal choice for soda water. 3It is made of highquality aluminum resistant to high pressure and has good durability and stability. 4This adapter one end is W21.814 thread another end is TR214 quick connect. 5Small size easy to carry has beautiful appearance good CO2 refill adapter. Specification: Item Type: CO2 Refill AdapterMaterial: AluminumColor: BlackThread Size: W21.8-14 // TR21-4Applicable Countries: South Korea Japan Britain Germany France Poland Norway Switzerland Russia Ukraine South Africa Sweden Chile Czech Republic Singapore.. (some countries are also called DIN477 /JIS m22-14)Weight: Approx.126g/4.4ozHow To Use:1. Use the appropriate wrench to connect the adjuster to the adapter.2. Hold the gas cylinder firmly with one hand and fix the adapter/regulator on the gas cylinder with a wrench.3. The pin in the adapter will depress the valve on the cylinder to open the airflow.4. Continue to tighten the adapter onto the cylinder until the cylinder slides into your hand. Package List: 1 x CO2 Refill Adapter2 x Gasket Note: Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.