【UNIVERSALLY FIT】 : The system allows you to connect a large CO2 tank to sparkling water maker machine including Terra, Art, DUO. It can only work perfectly with the 'Pink CO2 cylinder connect system', and cannot work together with the 'Blue CO2 cylinder connect system' such as Fizzi One Touch, JET, Aqua Fizz, Genesis, Source, DrinkMate, Aarke, Philips. Only treats gaseous CO2 and does not process liquid CO2. Liquid CO2 will make your drink taste bad.