I am very happy with the Aspire Nautilus tank. I have been vaping for 3 yrs. And have had trouble with tanks that leak. This tank is great, no leaking and holds enough juice to last me all day. It works great on my 50W Eleaf istick. I got my favorite Nautilus Tank on Aspire official authorized website and it came me rather quickly after my order was made. Really enjoyable purchase experience and vaping experience i got! I will continue to vape my Nautilus Tank and get some replacement components on this website. Just $27.9 for this great deal on official authorized website!