SodaStream Revolution Home Soda Maker Starter Kit, Titan and Silver The automatic Revolution home soda maker features automatic one-touch activation with a choice of 4 carbonation levels Choose from over 60 better-for-you regular, diet and all-natural soda mix varieties with no high-fructose corn syrup and no aspartame Each bottle of soda mix makes up to 12 liters of soda (33 cans) Voted 2013 Product of the Year by Consumer Survey of Product Innovation Once empty, exchange the 4-ounce starter CO2 carbonator for a full 60-liter carbonator with included mail-in rebate at over 15,000 locations