Features: OOTDTY Brand new and effective With 2000psi strain gauge, safe and reliable, it's a life like sodas accessory. Easy to install. CO2 refilling adapter is simple to use and can fill carbon dioxide 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 ensures compatibility with maximum cylinder valves changes. Whether you're at domestic or running a bustling establishment, our top off adapter offers a handy resolution for connecting and refilling your carbonation tanks. Upgrade your carbonation travel with our reliable and flexible refill adapter, designed to fulfill the needs of other customers and make sure effective carbonation every time. Specifications: Material:Brass Length:Approx/1 Package Includes: 1 Set CO2 Charging Adapter Note: 1 allow 1-2cm errors due to instruction manual measurement, just be sure to don't intellect before you order. 2 to the adaptation between different monitors, the picture may not reflect the particular color of the item.