Customise your sparkling water at home; fizz your water, add your flavour and enjoy; The CLASSICS Diet Tonic mixer contains no aspartame or artificial sweeteners with minimal calories; making it a better-for-you alternative to pre-prepared Diet Tonic. The sodastream diet range offers full flavour, without the calories. Classics diet contain no artificial sweeteners, including aspartame. Each 440ml bottle makes up to 36 servings (9 litres) of flavoured sparkling water. Only carbonate water. Flavours should be added after and according to personal taste. For use in SodaStream drinks maker. 1 x 440 litre bottles. Each bottle makes up to 7 litres. Pack contains: 1 x tonic flavoured concentrate, diet concentrate, . Not suitable for the dishwasher.