SodaStream 60 Litre Spare Gas Cylinder for Sparkling Water Maker, CO2 Cylinder for Making Fizzy Carbonated Water at Home (Screw In Blue Gas, compatible with Spirit, Crystal, One-Touch, Genesis, Power) : Amazon.co.uk:
CO2 for Soda Stream & Small CO2 Cylinder Filling - 3.15kg
SodaStream is a bad deal, and modding your own is better - The Verge
Exchange and Refill Your 60L CO2 Cylinders – SodaStream UK
Sodastream Quick Connect CO2 Cylinder 425g | Sainsbury's
Exchange and refill C02 gas cylinders (incl. Pink Quick Connect) – SodaStream
SodaStream Spare Gas Cylinder And CO2 Cylinder | BuysBest
SodaStream Cylinder | Inn House Brewery
All about CO₂ Gas Cylinders – SodaStream UK
Exchange and refill C02 gas cylinders (incl. Pink Quick Connect) – SodaStream
Sodastream co2 system for under $60 : r/PlantedTank
Everything You Need to Know About CO2 Cylinders – SodaStream UK
How To: Cheap Homemade Seltzer with a Modified Sodastream - Frugalwoods