SodaStream Classics - Tonic, 440ml With a new and improved flavour, this concentrated tonic drink is an easy way to make your favourite sparkling drink at home. Simply pour it into your SodaStream bottle, add some water and in the touch of a button it's transformed into a delicious fizzy drink. One 440ml bottle will make up to nine litres of tonic so there's plenty to make for the whole family and their friends! 440ml Makes 7-9 litres