1. This carbonator gasket for CO₂ cylinder replacement in the soda machine is designed for the pink soda steam can. It is a sealing gasket suitable for a new - version soda machine and is compatible with DUO/Terra/Art quick - connect machines. 2. It is made of certain materials and features an O - ring design. 3. It is relatively easy to install. As an upgrade auxiliary kit, it can be used as an O - ring replacement seal and a carbonator gasket for cylinder replacement. It fits well with the pink soda steam can and can be installed without special tools, allowing your soda machine to operate better. 4. Color: Yellow 5. Material: Silicone 6. Packaging contents: - Five O - rings 7. The package mainly includes the above - mentioned items. 8. Note: Light reflection and different displays may cause some differences between the color of the items in the picture and the actual product. A measurement error of +/- 1 - 3 cm is acceptable.