Features: OOTDTY Brand new and positive With 2000psi pressure gauge, safe and reliable, it's a reasonable sodas accessory. Easy to install. CO2 refilling adapter is simple to apply and can fill carbon dioxide correct into a sodas bottle. TR21-4 female thread and male thread W21 connection, there'll be no leakage when to the cylinder adjustable valves pin guarantees compatibility with most cylinder valves changes. Whether you're at domestic or operating a bustling establishment, our top off adapter provides a useful reply for connecting and refilling your carbonation tanks. Upgrade your carbonation journey with our dependable and flexible top off adapter, designed to fulfill the needs of alternative users and ensure wonderful carbonation each time. Specifications: Material:Brass Length:Approx/1 Package Includes: 1 Set CO2 Charging Adapter Note: 1 enable 1-2cm mistakes due to guide measurement, simply be sure to do not intellect before you order. 2 to the variation between varied monitors, the picture may not reflect the actual color of the item.