Welcome to our store! High-quality carbon dioxide cylinder adapter, suitable for a variety of soda machines. Good sealing performance, no air leakage when connected to the cylinder, more convenient to use. It can be mounted on the cylinder in TR21-4 threaded soda cylinder to play the role of conversion interface. Made of high-hardness material, durable and wear-resistant, long service life. The surface is electroplated, bright as a mirror, corrosion-resistant, not easy to oxidize and rust. Send: 100% brand new Item Type: CO2 Cylinder Adapter Weight: Approx. 76 g / 2.7 oz Product Length: Approx. 3.6 cm / 1.4 in Thread Size: TR21-4 Male Thread Size: CGA320 Uses: The adapter is mounted on the threaded soda machine cylinder TR21-4 to act as a conversion interface Threaded interface: Large carbon dioxide cylinder threaded CGA320 or 0.825-14NGO (US TR21-4, G1/2) Applicable countries: USA, Canada, Brazil, Colombia, Philippines 1 x Adapter 1 x Gasket Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.