How much does it cost to refill CO₂ cylinders in Spain? 2026 Comparison
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If you have a soda maker or carbonator at home, the most recurring expense isn't the machine: it's the CO₂ refills. A cylinder runs out, depending on use, between two weeks and a month. That's why choosing wisely where to refill makes a real difference to your wallet throughout the year.
In this comparison, we analyze the main CO₂ cylinder refill providers available in Spain in 2026: prices, shipping conditions, deposits, and fine print.
Price Comparison: CO₂ Cylinder Refills in Spain
| Provider | Price/cylinder | Home delivery | Deposit | Coverage |
|---|---|---|---|---|
| Congas – Soda Club | €16.50 | ✅ Included | ❌ No deposit | All of Spain |
| EcoFizz | €16.00 | ✅ Included | ⚠️ €12/cyl. in store credit | Barcelona only |
| SodaStream | €19.90 | ⚠️ €6.90 (free from 3 units) | ⚠️ €12.10/cyl. blocked | All of Spain |
| Congas – one-time purchase | €29 – €35 | ✅ Included | ❌ No deposit | All of Spain |
Prices consulted in June 2026. SodaStream price does not include the €12.10 deposit per cylinder.
Provider Analysis
SodaStream — €19.90/refill
SodaStream is the leading brand in Spain, with the widest distribution network. Their online refill price is €19.90 per cylinder, but there are two aspects to consider:
€12.10 deposit per cylinder. For each order, SodaStream automatically adds €12.10 per cylinder as a deposit. They refund it in cash once they receive the empty cylinder, but in the meantime, that money is blocked. If you have two cylinders in rotation, that's €24.20 indefinitely tied up.
The cylinders are not yours. SodaStream specifies that the cylinders are their property and are provided under a usage license. This means you cannot take them to another provider for refilling.
Shipping costs. Shipping costs €6.90 if the order is less than €59. To get free shipping, you need to order at least 3 cylinders (€59.70).
EcoFizz — €16.00/refill + €12 non-refundable deposit
EcoFizz advertises a price of €16 per cylinder, but charges an additional €12 per cylinder as a deposit — and this money is not refunded in cash: it becomes store credit. If you stop using the service at any point, that amount disappears. The actual price per cylinder, including the initial deposit, is significantly higher than it appears.
Added to this is that it operates exclusively in Barcelona and requires everything to be managed through its mobile app.
Congas – Soda Club — €16.50/refill
The Congas Soda Club is the most economical refill service available throughout Spain, with home delivery and collection included and no initial deposit.
How it works: We send you full cylinders and collect the empty ones with each delivery. No need to keep track: the system works automatically. No commitment, cancel whenever you want.
The only condition is that if you don't return the cylinders within 12 months, a €12/cylinder guarantee applies. If you use the service normally, this cost does not exist.
Which carbonators are Congas cylinders compatible with?
Congas cylinders are compatible with standard screw-thread carbonators and soda makers, including standard screw-thread SodaStream models and other brands on the market with the same connection system.
If you have doubts about compatibility with your model, consult our cylinders page or contact our team.
How much can you save annually?
With 12 refills a year (one a month), the difference between the Congas Soda Club and SodaStream is €40.80 annually — not counting the blocked deposit or potential SodaStream shipping costs.
Unlike SodaStream, our cylinders are refilled and shipped from Spain, without traveling thousands of kilometers from central Europe as is the case with SodaStream.
Conclusion
If you're looking for the most economical option with home delivery throughout Spain, no blocked deposits, and no commitment, the Congas Soda Club is the most complete alternative on the market at €16.50/cylinder.
EcoFizz advertises €16 with a subscription format where you have to return your cylinders every 30 days, whether they are empty or not, but charges a €12 deposit per cylinder which you only recover as store credit, never in cash. SodaStream has a higher price and also retains a deposit per cylinder while awaiting the empty containers.
👉 Learn more about the Soda Club and start saving on your CO₂ refills.