The refill adapter is built from quality materials for durability, engineered for reliable performance which can stop the quick filling adapter escaping from the tank the Refill Adapter for Filling Co2 Exchange Carbonator is specially designed for 60L pink CO2 Cylinder to replenish CO2, With the CO2 refill adapter, you can start your freedom journey, In You may find that the tank is far from meeting your need. You have to change it frequently, especially when you have parties, trips, or family meetings, with the refill adapter you can have Cost effective refilling and at any time. Save Money & Easy to Install: With This pink cylinder refill adapter, You can fill co2 cartridges by connecting a commercial co2 bottle with the pink CO2 cylinder with quick connect. Material: Stainless steel colour: Silver Package Contents: 1 x Quick Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.