SodaStream DUO is SodaStream's first sparkling water maker to be compatible with both SodaStream's new stylish glass and reusable plastic bottles. The glass bottle is a beautiful centrepiece to the dinner table and perfect for hosting friends and family, whilst the reusable plastic bottle means that you can make your own sparkling water at home and then take it with you anywhere on the go. The Duo also features the new Quick Connect technology for fast and easy CO2 cylinder insertion. Manual carbonation, no batteries required. Quick Connect Cylinder Technology for effortless use. Cool, modern design, a focal point of any kitchen. Includes 60 litre gas cylinder, a 1 litre dishwasher safe, BPA Free bottle and one glass carbonating bottle. H:44cm x W:15.8cm x D:31cm