The Subtank Nano is part of Kanger's immensely popular line of versatile sub-ohm clearomizer tanks. The Subtank Mini comes equipped with (2) Organic Cotton Coil Heads (OCC), which offer the performance of an RDA dripper, but with the convenience of a large capacity clearomizer. True to its name, the Nano has a diameter of 18.5mm (compared to the Kanger Subtank Mini which is 22mm), 48mm long, and has a maximum e-juice capacity of 3ml. Like the standard Kanger Subtank and Subtank Mini, the Nano is compatible with coil resistances as low as 0.5Ω and as high as 1.2Ω. This tank will perform best when used with a maximum power output of 30W.