Aspire Nautilus 2S Tank: Aspire brings you the all new, just as curvy, Nautilus 2S. The new Nautilus 2S tank that comes in 2.6ml and a 2ml version for TPD. The latest in the Nautilus 2 tank series, a sleek, curvy design equipped with a 0.4ohm BVC coil for direct to lung vaping and a 1.8ohm BVC coil for mouth to lung vaping. Top-fill child resistant design with a silicone self seal keeps things clean, and as the coils are interchangeable with other Nautilus coils, it allows you to personalize your draw/vapor preference.; The new Nautilus 2S tank comes in five stylish finishes, Stainless steel, space gray, blue, black and rainbow.