Features: OOTDTY Brand new and advantageous Made of brass material, which is proof against corrosion, oxidation, and has a good surfaces finish and sealing for an extended carrier life. Easy to install. CO2 refilling adapter is simple to apply and might fill carbon dioxide appropriate into a sodas bottle. TR21-4 to W21 connection, there'll be no leakage when to the cylinder adjustable valves pin ensures compatibility with maximum cylinder valves changes. Whether you are at home or operating a bustling establishment, our refill adapter provides a useful reply for connecting and refilling your carbonation tanks. Upgrade your carbonation trip with our reliable and flexible top off adapter, designed to meet the purposes of different prospects and confirm effective carbonation every time. Specifications: Material Size:Approx/3 Package Includes: 1 Set CO2 Adapter Note: 1 enable 1-2cm errors because of handbook measurement, just remember to do not intellect before you order. 2 to the difference between various monitors, the picture may not reflect the actual shade of the item.