Subtank :
Subtank are the new era of vaping , These tank are based on .5ohm or lower . the benefits of these tanks are that you get more flavor and bigger hit and smoke or you could say cloud like the mechanical mods, so now you can enjoy big vapor like Rebuildable Tanks but without any hassle of Rda. Just put your liquid in the subtank and enjoy big vapor and awesome flavor. Subtank coil seems to last longer also.