The Carbonator Pro is the first and only glass-bottled sparkling water maker where the entire process of sparkling is done with one hand. Aarke's Push-to-Lock (TM) solution allows for one-handed operation, offering a combination of a push-down bottle cover and a self-locking feature. To ensure that the Carbonator Pro will perform over the long term, Aarke engineers developed a robot that puts it to the test for over 10,000 cycles as part of the product development process. This equates to 27 years or more of use.