UD Bellus RTA is the newest rebuildable atomizer from the superstar engineering team at Youde. At 45mm tall with a 5ml capacity, it is a rebuildable tank built with user feedback integrated into it. It will not accept any pre-built coils. This atomizer has a whopping 16 air inlets on each side, for a total of 32. The top-fill system prevents a mess when filling up. The innovative deck allows air inlets to get as close to your coil as possible, beneficially affecting airflow in the chamber.