Authentic Kanger Subtank Clearomizer:
http://www.cigabuy.com/authentic-kanger-subtank-clearomizer-p-6872.html

Product Features:
It features an airflow system via an adjustable valve which allows the user to customize the amount of air drawn through the tank. The tank itself is made of Pyrex Glass and has a large liquid capacity of 6.0ml.
The revolutionary Kanger Subtank is a first of it's kind as it gives yout he freedom to switch between the newly designed Organic Cotton Coil head (OCC) and a new rebuildable atomizer head. With just a few twists, you can switch easily and modify by making your own coils and choosing your own wicks.
Kanger Subtank Compatible with most batteries and features a Drip Tip mouthpiece.
Pure taste
New Organic Cotton Coil Head
OCC: 6ML liquid
RBA: 4.2ML liquid
Length: 55mm(without drip tip)
Diameter: 25mm