Summary
- What is a CO₂ cylinder?
- Purple cylinder — For screw-in machines
- Turquoise cylinder — For quick-connect machines
- Comparative table of CO₂ cylinders
- Exchange your cylinders across Canada, regardless of the brand
- FAQ
What is a CO₂ cylinder?
A CO₂ cylinder is simply an aluminum tank containing food-grade carbon dioxide gas under pressure. It's the essential component that instantly transforms your tap water into sparkling water. Depending on the degree of carbonation, a CO₂ cylinder can produce up to 60 litres of sparkling water. This means you avoid buying hundreds of single-use plastic bottles per year: it's a winning solution for the planet, your budget, and your back, which will no longer have to carry heavy water packs!

Purple cylinder — For screw-in machines
The purple cylinder is compatible with all machines on the market that use a screw-in system, also called a "twist" system. This universal CO₂ refill format remains the most common on the Canadian market.
It works with:
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SodaStreamᴹᴰ: Fizzi, One Touch, Crystal, Jet, Genesis, Source and Power.
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High-end brands: Aarke, Breville, and Smeg.
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Other brands: Ninja Thirsti, DrinkMate, and the ChefClub machine sold by IGA.
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Indigo Soda: Perfectly suited to all our machine models.

Turquoise Cylinder — For clip-on machines
The turquoise cylinder (Easy Connect) is a compatible alternative designed for SodaStreamᴹᴰ Quick Connect models, often identified by their pink cylinders. This modern mechanism requires no screwing: simply insert the bottle and lock it into place with a single motion until you hear a click.
It works with:
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The latest SodaStreamᴹᴰ Art, Terra, Duo, Gaia and Enso models.
Technical Note: Some electrical appliances or SodaStreamᴹᴰ Mix or E-Terra models may require firmer pressure on the button due to the stiffness of internal springs.
CO₂ cylinder comparison chart
|
Features |
Purple Cylinder - Twist |
Turquoise Cylinder - Easy Connect |
|
Connection Type |
Standard system |
Easy / Quick Connect System |
|
Easy Installation |
Twist |
Insert and clip |
|
Equivalent color |
Sodastream blue cylindersᴹᴰ |
Sodastream pink cylindersᴹᴰ |
|
100% compatible with your machine |
SodaStream® (Fizzi, One Touch, Crystal, Jet, Genesis, Source, and Power), Aarke, Breville, Smeg, Ninja Thirsti, DrinkMate, ChefClub etc. |
SodaStream® (Terra, E-Terra, Art, Duo, E-Duo, Gaia, Mix, Enso) |

Exchange your cylinders across Canada regardless of the brand
In short, no matter what brand you currently own (SodaStream® screw-in or Quick Connect), you can exchange an empty cylinder for an Indigo Soda at one of our many retail locations across the country.
After reading this guide, don't let your machine gather dust: find your color, exchange your cylinder, and take back control of your bubbles. After all, the only thing that should be under pressure here is your water, not you!
Need personalized advice on choosing the right machine or cylinder? Contact the Indigo Soda team who are always there to guide you.
FAQ
Are Indigo Soda cylinders compatible with SodaStream®?
Yes. The purple cylinder replaces the blue screw-in model, and the turquoise cylinder replaces the pink Quick Connect model. The gas quality is identical, but the solution is more local.
Where can I exchange my empty CO₂ refills?
You can make exchanges at thousands of partner retail locations across Canada, including many grocery and hardware stores in Quebec. Simply return your empty cylinder of any brand to get a reduced price on your Indigo Soda refill.
Why does my sparkling water machine require more pressure with a new cylinder?
This depends on your type of machine, but it has been reported that electric machines are more frequently affected. The safety valve and springs of the machine can offer some resistance. We therefore advise you to press the carbonation button more firmly or for a longer period to resolve this situation.
Daphne Ross
I lead the marketing at Indigo Soda, a Quebec-based company specializing in CO2 cylinders compatible with all sparkling water machines. I contribute to promoting our mission: to offer a local, economical, and ecological alternative to major brands, and to make sparkling water more accessible across Canada.