jicheng CO2 Cylinder Adapter Professional Refill Adapter for Sparkling Water Machine Thread A.The CO2 Cylinder Connector is made of sturdy metal and rubber materials, offering you reliable performance and long service life.Our CO2 adapter is designed to connect with your sparkling water machine seamlessly, ensuring a quick and efficient refilling process. Suitable for home or commercial use.This CO2 adapter is easy to install and use. Its ergonomic design makes it easy to install and use.This CO2 adapter is a must-have accessory for your maker. It allows you to refill your CO2 tank effortlessly, making your making process more enjoyable.With this CO2 adapter, refilling your CO2 tank has never been easier. It's a practical tool for all sparkling water machine owners.Co2 Adapter for maker Quick Connect Adapter. CO2 Tank Maker Accessories G1/2 TR21-4. CO2 Tank Refill Adapter Tank Filling Connector. CO2 Cylinder Adapter Replace Parts Accessory. Quick CO2 Adapter for Sparking Water Machine.