The OBS Engine RTA has a tank volume of saturated 5.2ml and has a double deck (Velocity-Style) which offers plenty of space for a wide variety of windings. Thanks to the special air circulation technology, the Atomizer can also be steamed under high temperatures without overheating. The airflow is adjusted below the mouthpiece. The metal ring below the air slot can be pulled over it and the liquid filling opening appears.
The whole OBS Engine RTA tank is very fully manufactured and consists of stainless steel and the Menthol-resident Quartzglas.