Aarke CO2 Refill Cylinder - Renewable 60L Gas Carbonator Machine Cartridge, Compatible with Most Screw-in Sparkling Water Makers, Food-Grade Carbonated Water Refill (2-Pack)

The CO2 cylinder seems good. Works fine. It has the standard screw top that is compatible with my MySoda machine.

so far so good

They work as expected. Great value. Easy to replace and install.

Very nice

Good product, however, I now need to return the canisters and order new ones and there is no indication on how to do this on Amazon.

Excellent quality. Good service. Easy to use. The initial expense (for the Aarke Carbonator 3) is worth it in the long run. If you have tap water that has a good filter (reverse osmosis filter), and you zap it with the CO2, then when it's in a glass, sprinkle in a little non-refined salt (like Himalayan or better yet Maldon salt), voilà!--You get clean, excellent tasting mineral water. Plus, we no longer need to lug bottles of water into the house or worry about plastics which are present in all commercial mineral waters (e.g., Gerolsteiner, San Pelegrino, both of which we used to drink).

Very good

These work great. But now I need to find a way to return the empty canisters.