Published 15 January 2019 13:13 How can I be sure that the gas cylinder I have fits my sparkling water maker? As long as you're using an official SodaStream gas cylinder it will be compatible with our sparkling water makers! Related articles I own an older SodaStream sparkling water maker, can I use your current bottles, gas cylinders and flavours with my model? Are all types of SodaStream bottles compatible with all SodaStream Sparkling Water Makers? Can I use 0.5 litre carbonating bottles with my Sparkling Water Maker? What's the difference between gas exchange vs back up gas cylinders? What do I do when my gas cylinder runs out of CO2?