Gille tank has a bigger brother called Gille Mega. A whole new design lets you able to use the tank more simple and easy. Although in the same line with Gille tank, the Gille Mega is a little bit bigger in liquid capacity (3.5ml), diameter (24mm) and so much more. The Gille Mega still has 4 airflow holes and still unadjustable like Gille tank does, top-fill design making it a leak-proof, and output range from 20-40W. The new spiral design of the NotchCoil makes it more easy to rewick.