The new BVC (Bottom Vertical Coil) Series Replaceable Coils are an upgraded version of BDC (Bottom Dual Coil) Clearomizer replacement coils. The BVC general coils have new wicks in it, which use new materials and technology. The result is a purer taste. These coils are compatable with the Aspire K1 and common BDC clearomizer series such as the ET, ET-S, CE5, CE5-S clearomisers.
Please be aware that these coils are not for the Nautilus series of tanks