SodaStream Source Soda Maker in Blue with Exclusive Kit w/ 4 Bottles & Starter CO2 Transform ordinary tap water into fresh, great-tasting soda or sparkling water in less than 30 seconds Choose from over 60 better-for-you regular, diet and all-natural sodamix varieties with no high-fructose corn syrup and no aspartame Each bottle of sodamix makes up to 12 liters of soda (33 cans) Requires no electricity, no batteries and no clean up 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