Innokin listened to their customers and provided some important updates to the Zenith tank. The Zlide comes with a removable glass for cleaning, and a sliding top-filling mechanism. The looks have also been updated, and the tank adopts a curvier and more modern look. The Innokin Zlide is 22 mm in diameter, fits up to 2 mL, and it is compatible with all the Zenith coils.