Split Design: Quick connector features a split design, making installation easy. It can be installed without removing the machine base and won't damage the machine itself. Cost-effective Solution: No need to purchase new cylinders or search for replacement options—this adapter makes refilling your CO2 cylinder convenient and economical. Premium Material & Durability: Made from high-quality aluminum with a polished electroplated finish, this adapter provides excellent strength, leak-proof performance, and high-temperature resistance. Enjoy safe and reliable carbonation with every use. Easy to Use: Simply connect the quick adapter to your soda maker and attach the other end to your standard CO2 cylinder with TR21-4 male thread. It's a quick and secure solution for seamless soda preparation. Color: Material: Aluminum alloy Package Contents: 1 x Cylinder Refill Adapter Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual item. Measurement may vary by +/- 1-3 cm.