This is truly a magnificent tank...and well priced at $32. You truly do pay for what you get. This is an authentic Aspire product with serial number you can look up. It comes with a thread connector and extra coil.
The Aspire Nautilus uses the new Aspire BDC coil heads, it has a 5ml glass Pyrex tank and it has an air flow control mechanism adjustable with the lower ring with 4 settings to make it the best atomizer so far in 2014. The air flow control allows to control the draw as well as fine tune how much e-Liquid feeds into the coil head. All these features makes the Aspire Nautilus a truly special atomizer and provide the absolute best vaping experience possible at the moment.