Carry on enjoying your convenient sparkling water from home with this SodaStream Gas Refill Cylinder. With each cylinder making up to 60 litres of sparkling water, this is a great way to reduce your carbon footprint and single use plastic waste.This cylinder is compatible with all SodaStream sparkling water makers and helps to reduce CO2 emissions by producing less manufacturing and less transportation, as well as drastically reducing the amount of plastic waste per household by an average of 1,282 per year!Please note -You can return your empty CO2 cylinders in any Ryman store and exchange it for a full one and receive 10 pound off.. SodaStream Exchange CO2 cylinder. Makes up to 60 litres of sparkling water . Approximate dimensions (mm) H 375 W 65 D 65. Weight 1KG. Exchange in any Ryman store