TR21-4 Quick CO2 Cylinder Adapter for Sparkling Water Makers with O-rings, Refill Adapter Compatible with Duo/Terra/Art Sparkling Water Makers – Purple

INSTALLATION NOTE – If you are using the adapter with a CO₂ cylinder with a TR21-4 thread and the cylinder cannot be inserted into the device, please remove the base plate of the device before connecting the adapter and cylinder.

UNIVERSAL COMPATIBILITY – Fits 60-liter CO₂ cylinders with a TR21-4 thread and the DUO, ART, TERRA, E-Terra, Crystal 3.0, and Gaia models.

Easily connects classic cylinders to modern devices.

ROBUST MATERIAL – Made of high-quality aluminum alloy, corrosion-resistant, lightweight, and sturdy for safe and long-lasting use.

EASY INSTALLATION – One-piece design: Simply screw the adapter onto the CO₂ cylinder with a TR21-4 connection (screw cap) to connect it to a quick-connect sparkling water maker. Use it. No technical knowledge required.