The Fireluke Mesh Pro sub ohm tank is the Ultimate edition of the Fireluke series, introducing a new multi-mesh coil system with compatibility with the original as well as a 6 mil maximum juice capacity and dual slotted bottom airflow measuring 25 mm in diameter. The new mesh Pro tank implements a beautiful material construction frame geared towards user-friendly designs. The crowning achievement lies within the coil system, featuring more surface area that results in even heating of cotton and E-liquid for a consistent vaping experience. The new mesh Pro coil system is fully compatible with the Fireluke tank and Fireluke Pro tank. Bottom adjustable airflow measuring at 16 mm by 4 mm each allows for ample airflow into the chamber producing maximum flavor and clouds. Finally, the new retractable sliding fill top provides easy refills perfect for on-the-go. Thumbs up.