Features: 1No gas leakage when connected to the cylinder good sealing performance. 2The connector can easily inject carbon dioxide into the adapter which is simple in operation and practical. 3Made of selected alloy material polishing plating process anticorrosion wearresistant. 4The product has simple operation easy to use suitable for most working environments. 5The installation method is simple and practical and the old or damaged parts can be replaced directly. Specification: Item Type: CO2 Filling AdapterMaterial: AlloyColor: SilverTotal Length: Approx.7.8cm/3.1inWeight: Approx.376g/13.3ozThread Size: W21.8-4 // 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)Application: It is the pin valve of the gas cylinder of the soda water machine/bubble water machine used to connect the gas cylinder/inflate Package List: 1 x CO2 Filling Adapter6 x Gasket9 x Retainer1 x Wrench1 x Brass Adapter1 x Instruction Manual Note: 1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding.2. 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.