The Aspire Nautilus X Tank is the newest upgraded version of the original Nautilus Sub Ohm Tank. The revolutionary Nautilus X by Aspire is designed for mouth to lung vapers. Utilizing the new Aspire U-Tech coil system, the Aspire Nautilus X provides exceptional flavor and longevity with its 1.5 ohm (14-22W) atomizer heads. The ultra low profile design of the Nautilus X Tank is constructed of stainless steel and Pyrex glass. The 2ml liquid capacity and size of the tank makes the Nautilus X Tank one of the smallest sub ohm tanks on the market. The Aspire Nautilus X Tank also features an incredible top fill option and adjustable top airflow. Get ready for the best flavor and mouth to lung vaping experience with the new Aspire Nautilus X Tank.