The T-Dux 4.0 is the newest tank in Smok's T-Series line. This tank has the look and feel of a rebuildable, without the fuss! It holds 4mL of e-Liquid and uses the Small Slot T-Series replacement heads. With T-Series coils, you get unmatched flavor and vapor production. Unlike the other T-Dux clearomizers, the 4.0 comes with it's own stainless steel drip tip, and it's removable, so you can use any drip tip you'd like. If you're looking for an awesome all-around tank with great flavor, vapor, capacity, looks and ease-of-use, then this is the tank for you!
The correct replacement coils for this unit can be found here.