Perfect Compatibility & Easy Installation: Designed for use with machines such as DUO, ART, TERRA, and E-DUO/Crystal 3.0, this CO2 quick adapter enables a secure and easy connection to standard 60L CO2 cylinders with TR21-4 trapezoidal thread. Its split design allows for simple installation without the need to remove the machine base or cause damage. High-Quality Material & Reliable Performance: Made from premium aluminum alloy, this CO2 adapter offers excellent corrosion resistance, as well as resistance to moisture and heat. The durable build and effective sealing performance provide protection against oxidation and rust, ensuring long-term reliability. Replaceable Components for Extended Use & Lower Maintenance: Features a quick-connect QC fitting with a replaceable rubber O-ring. If the ring becomes worn or loose, it can be easily replaced, enhancing the adapter’s lifespan and reducing maintenance needs. Cost-Effective & Time-Saving Solution: Allows the use of standard CO2 cylinders without requiring replacement of the entire cylinder or heating unit, helping to 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. Lighting and monitor settings may cause slight variations in color between the image and the actual product. Measurement may vary by up to 1-3 cm.