COMPATIBILITY: Each machine is compatible with a specific Co2: Classic screw-in or Quick Connect system. These cylinders are compatible with ANY screw-in machine - Aqua Fizz, Fizzi, One Touch, Jet, Penguin, Spirit, Source, Power, Crystal, Play, Fountain WHY CHOOSE SODASTREAM: Each SodaStream Co2 cylinder is filled with 100% Food Grade Co2 and undergoes triple quality control checks where they are cleaned, filled and sealed. HOW LONG WILL IT LAST: Each cylinder makes up to 60 liters of water (upto 71 SodaStream bottles), depending on carbonation level and sparkling water maker. SUBSCRIBE & SAVE: Get our SodaStream Canister automatically delivered at a frequency of your choice for additional savings. SUSTAINABLE: SodaStream Co2 Cylinders can replace up to 1260 single-use plastic bottles (based on carbonation level & sparkling water maker). SodaStream Co2 cylinders are circular forever when exchagned for refill.