? The DrinkMate is the ONLY carbonation beverage maker that allows the user to carbonate ANY BEVERAGE in your fridge.;? Patented detachable Fizz Infuser and two release buttons allow better control on release of CO2;? Smaller footprint saves counter space; Ease of use, easy to clean - No Electricity or batteries required;? Quick connect bottle is BPA-free with volume mark line;?The Drinkmate works with the most common brand of 14.5 oz (60L) CO2 carbonators out there. To find a CO2 carbonator supply near you, google carbonator exchange and choose a site that shows a location most convenient for you. Or you can buy an adapter to adopt other style of cylinder for cheaper CO2 exchange.