1Made of selected brass materials, precise design, anti-corrosion and wear-resistant. 2. The product is simple to operate and easy to use, and is suitable for most working environments. 3. The connector can easily inject carbon dioxide into the adapter, which is simple and practical to operate. 4. Products include carbon dioxide valves, connectors, plastic rings, small yellow plastic rings and hexagonal wrenches. 5. There is no air leakage when connected to the gas cylinder, and the sealing performance is good. Product Type: Carbon Dioxide Filling Adapter Material: Brass Usage: Carbon Dioxide Filling Kit 1 x Carbon Dioxide Valve 1 x Connector 1 x User Manual 6 x Plastic Ring 9 x Small Yellow Plastic Ring 1 x Hex Wrench