Perfect Compatibility & Easy Installation: Designed for compatibility with devices such as DUO, ART, TERRA, and E-DUO/Crystal 3.0, this CO2 quick adapter enables a seamless connection to standard 60L CO2 cylinders with TR21-4 trapezoidal thread. Its split design allows for easy installation without removing the machine base or causing damage.Durable Material & Reliable Performance: Constructed from high-quality aluminum alloy, this CO2 adapter offers excellent corrosion resistance and durability. The robust build and effective sealing performance provide protection against oxidation and rust, ensuring long-term reliability.Replaceable Components for Extended Use: The quick-connect fitting includes a replaceable rubber O-ring. If the seal becomes worn or compromised, it can be easily replaced, enhancing longevity and reducing maintenance needs.Cost-Effective & Time-Saving: This adapter allows continued use of existing CO2 cylinders without the need to replace the entire cylinder or heating unit, helping save both time and money.Material: Aluminum alloy Color: Rose Red Package Contents: 1 x CO2 Quick Adapter Note: The package includes only the items listed above. Other products are not included. Note: Lighting and display settings may cause slight variations in color between the image and the actual product. Measurement may vary by up to 1-3 cm.