this item Make fresh sparkling water at the push of a button. Includes: sparkling water maker, (1) 60L Co2 cylinder, (1) Dishwasher safe botle, and (1) 40 ml bubly drops flavors Energy efficient, powered by Co2 cylinder. Each Co2 cylinder carbonates up to 60 liters of water. Easy-to-use snap-lock bottle insertion for quick carbonation Compatible with all SodaStream flavors and SodaStream carbonation bottles (BPA free and better for the planet) except the SodaStream glass carafe