The image shows a SodaStream 60L Quick Connect CO2 Cylinder, which features a pink label and top mechanism designed for compatible sparkling water makers.Compatible SodaStream ModelsThis Quick Connect canister is specifically designed to fit newer handle-lock models. It is fully compatible with the following machines:ArtTerraDuo / E-DuoE-TerraEnso(Note: It is not compatible with older "screw-in" system models like the Fizzi, One Touch, Jet, or Source, which require the classic blue-labeled cylinders.)Where to Exchange or RefillWhen empty, you can trade this in for a full cylinder at a reduced cost through physical retailers or online mail programs:Major Retailers: Bring the empty cylinder to customer service counters at retailers like Walmart, Target, Best Buy, or local grocery stores to participate in their exchange program.Online Subscription: Order replacements directly through the SodaStream Official Website and use their prepaid return box to ship your empties back via USPS.