Quick-connect valve for water and carbon dioxide system for Terra Duo Art Gaia Sparkling Water Machine, TR21-4

Applicable Models: Use TR21-4 threaded CO2 cylinders in Terra, DUO, ART, and Gaia soda machines. No need to change the valve or cylinder; it can be used with both types of soda machines simultaneously.

Quality: Made of high-quality aluminum with integrated molding technology, lightweight, safer to use, durable, and not easily deformed—better than copper materials.

Installation: Easy to install; no wrenches or other tools required; can be easily tightened by hand.

New Design: A brand-new design that better fits the size of a soda machine, with a matte finish, long-lasting color, and a robust surface that is not easily scratched.