What is the different between the Protank 3 and the Protank II.
Base Protank KangerTech - eCig Zen
2013 Lastest Original Kanger Protank II with Stronger Base, Replaceable Glass and Drip Tip, Glue-Free - China Kanger Protank Ii Clearomizer, Latest Clearomizer | Made-in-China.com