Features: 1Applicable Model: This adapter is applicable for DUO for Terra for Art quick connect machine and it is an adapter connecting soda machine and carbon dioxide cylinder. 2Durable in Use: This soda refilling valve is made of aluminum rubber ASA copper material which is resistant to corrosion oxidation rust durability and safety. 3Good Sealing: The adapter valve is comfortable to touch has good sealing performance no air leakage and excellent quality. 4Simple Installation: It only takes a few simple steps your carbon dioxide soda machine can use this quick adapter as a replacement part. 5Thread Connection: Large CO2 tank thread CGA320 or 0.825 14NGO(TR21 4 G1/2 USA) please use according to the accurate size. Specification: Item Type: SodaRefillingAdapterValveMaterial: Aluminum Rubber ASACopperGross Weight: 284g / 10.0ozApplicable: forDUOfor Terra for ArtThreadInterface: large CO2tankthreadCGA320 or 0.825 14NGO (America TR21 4 G1/2)Applicable Countries: USA Canada Brazil Colombia Philippines Package List: 1 x Connector1 x RubberRing2 x Gasket1 x Instruction Manual