The TECC EN Tank is designed for convenience and has a 510 connection, allowing it to be used with almost any battery mod. It comes with one 1.2ohm EN coil that fit to the base through a push fit connection. This resistance makes it ideal for MTL vaping and works best with nic salt. Adding e-liquid is also simple thanks to the sliding top fill system. This allows you to refill the tank easily without removing it from the arc Mini 2 battery.