Which gas cylinder fits my machine? Grace 16 January 2023 04:03 Updated Unsure about which gas cylinder to purchase? Check out our guide here. Related articles Can I exchange my 30L cylinder for a 60L cylinder, or my blue screw-system cylinder for a pink, Quick Connect Cylinder? How do I insert a blue 60L gas cylinder? Why is SodaStream phasing out their 30L gas cylinders? Why can’t you send me replacement parts instead of a whole Sparkling Water Maker? My sparkling water is not fizzy enough. Help!