Aspire ET-S Glass
3ml EGO Clearomizer BVC
The ET-S BVC is an upgrade version of ET BVC, it has an exterior metal sleeve surrounding the tank with two small windows that allow you to see how much liquid is left in the tank at all times.
Filled from the bottom: Unscrew the base and fill tank while avoiding the metal airflow tube in the center.
*Not compatible with Aspire Nautilus Coils.