●Co2 cylinder consists of double valve design, safety without gas leakage. ●With a filling of the Co2 cylinder, you can bubble up to 60 litres of water. ●Soda co2 cylinder is made of food-safe carbon dioxide, and the purity is up to 99.9%. ●Compatible with all GLACIER FRESH models and other water carbonators with standard 425 g / 60 L screw gas cylinder ●They make an active contribution to environmental protection as you save thousands of bottles a year ●After ordering, you will receive the package within 3-5 days