Table of contents
- Aarke-compatible CO2 cylinder: know the difference
- What changes with an Aarke-compatible CO2 cylinder filled in Quebec
- How much a CO2 refill costs over a year
- Where to exchange your cylinder once it is empty
- Switch to an Aarke-compatible CO2 cylinder filled here
- FAQ
An Aarke-compatible CO2 cylinder does not require you to buy a new machine or rely on an imported refill. Aarke Carbonators use the standard TR21-4 screw-in thread, the same one used by the purple Classic Twist cylinder filled in Quebec.
The result: you keep your machine and choose a refill filled here, exchangeable from $12.50 plus tax at more than 2,500 partner retailers across Canada.
Aarke-compatible CO2 cylinder: know the difference
Aarke Carbonators use a screw-in connection. The cylinder attaches to the back of the machine using a TR21-4 thread, a standard shared by most sparkling water makers sold in Canada.
It is this standard that makes the Classic Twist cylinder directly compatible with your machine, with no adapter or extra part required.
Checking takes only a few seconds: remove your current cylinder and look at the connection. You will see a thread, which confirms the purple model. Carbonators do not work with the Quick Connect system, so the turquoise Easy Connect cylinder does not apply to these machines.
If you are unsure about a specific version of your machine, the guide identifying the right connection system explains the different cases brand by brand.
What changes with an Aarke-compatible CO2 cylinder filled in Quebec
A CO2 cylinder is a pressurized gas cylinder. In Canada, its manufacture and requalification are governed by the Transportation of Dangerous Goods Regulations, for which Transport Canada sets the technical framework. Each cylinder is therefore inspected at a specialized facility before being returned to circulation, which is why a well-maintained container can remain in service for decades.
For storage, the same rules apply as for all compressed gases, as noted by the Canadian Centre for Occupational Health and Safety : keep it upright, in a cool, dry and ventilated place, away from any heat source.
| Criterion | Classic Twist cylinder |
|---|---|
| Connection | TR21-4 screw-in thread |
| Capacity | Up to 60 litres of sparkling water |
| Exchange cost | Between $12.50 and $14.50 + tax |
| Cost per litre | About $0.20 |
| Exchange network | More than 2,500 locations across Canada |
| Filling | Specialized facility in Quebec |
What sets a locally filled refill apart in practical terms:
- an exchange network available through many types of retailers
- a posted exchange price, with no surprises at checkout
- a container returned to circulation instead of being discarded
- a supply that does not depend on an import chain
How much a CO2 refill costs over a year
At $12.50 for 60 litres, homemade sparkling water costs about $0.20 per litre. Bottled sparkling water is closer to $2 per litre. At one litre a day, the annual difference approaches $650.
Each 60-litre cylinder replaces an average of 170 cans. Over a year of daily use, the reduction in containers becomes just as tangible as the money saved.
Once you have confirmed the thread, the rest is simple. Order your Classic Twist cylinder or find an exchange location near you.
Where to exchange your cylinder once it is empty
The process is simple: bring your empty cylinder to a partner retailer, pay for the refill and leave with a full cylinder. No waiting, no shipping.
The exchange location map lists partners by postal code. The service also accepts empty cylinders from other brands, as long as the connection format matches.
If no partner is on your usual route, the Plan Bulle delivers refills to your home at your chosen frequency and picks up the empties at the same time.
Switch to an Aarke-compatible CO2 cylinder filled here
Changing CO2 suppliers does not mean changing machines. An Aarke-compatible CO2 cylinder screws onto the same thread, provides the same quality of bubbles and can be exchanged through a network of 2,500 locations across Canada.
Check the connection method at the back of your machine, then order your Aarke-compatible CO2 cylinder or find the nearest partner.
FAQ
Which Aarke-compatible CO2 cylinder should you choose?
An Aarke-compatible CO2 cylinder must use the TR21-4 screw-in thread, not the Quick Connect system. The purple Classic Twist model therefore screws directly into the back of the machine, with no adapter or extra part required. Carbonation quality remains the same because it is exactly the same gas at the same pressure. There is therefore only one format to choose for these machines.
How much does a refill for an Aarke machine cost in Quebec?
Exchanging an empty 60-litre cylinder for a full one starts at $12.50 plus tax at partner retailers. A new cylinder costs $28.50 on the initial purchase. After that, you pay only for the refill, never the cylinder itself. Over 60 litres, that works out to about $0.20 per litre of sparkling water made at home. The exact price varies by partner retailer.
