Aspire Bottom Vertical Coil (BVC) Pack of Five - Not Suitable for Nautilus
The new BVC Series Replaceable Coils are developed for the Aspire clearomizer series, they are the upgraded version of BDC Clearomizer replacement coils. The BVC coils have a new wicking system in them, which uses high-tech material and technology, the taste will be nicer and they work better than the old BDC coils.
so it is not only compatible with the Aspire K1,but also compatible with common BDC clearomizer series such as the Aspire K1, ET, ET-S,CE5,CE5-S clearomizers. Not suitable for Nautilus or Nautilus Mini tanks.