The Aspire Nautilus 2 tank is the successor to the original Nautilus and Nautilus Mini tanks. It features a 2ml capacity and a Top Filling mechanism, along with an expanded set of airflow options. This allows the user to dial just the right airflow regardless of coil choice.
Aspire have produced a new 0.7ohm coil for the Nautilus 2, and while it technically is a Sub-ohm atomiser, it's not really designed for the higher powered, direct-to-lung vaping, and should be considered a mouth-to-lung vape. The Nautilus 2 tank is also backwards compatible with the existing Nautilus coils, rated at 1.6ohm and 1.8ohms.