Features: 1Good sealing performance no air leakage when connected with the cylinder more convenient to use. 2Exquisite workmanship excellent and stable performance is a very practical accessory. 3The installation method is very simple just directly replace the old one or damaged parts with the new one . 4Easy to use the cylinder refill adapter connector kit can easily inject carbon dioxide into a water bottle. 5Made of highquality polished brass material wearresistant corrosionresistant and not easy to damage. Specification: Item Type: CO2 Refill ConnectorMaterial: Polished BrassWeight: Approx.371g/13.1ozTotal Length: Approx. 7.8cm/3.1inThread size: CGA320 // TR21-4Applicable Countries: the United States Canada Brazil Colombia the Philippines... (some countries are also called G1/2-14/0.825-14NGO)Purpose: It is the thimble valve of the gas cylinder of the soda water machine/bubble water machine used to connect the gas cylinder/inflate Package List: 1 x Soda Connector6 x Gasket9 x Retainer1 x Right Angle Wrench1 x Brass Connector Note: 1. Please allow 0‑2 cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.