Tried, tested and loved.
The Aspire K1 uses the great Aspire BVC coils for great flavour and easy maintenance.
This 1.5ml bottom fill tank has 1 way in and 1 way out which minimises the possibility of leaks and is easy to fill up and change coil.
With its glass construction we've found it's flavour to be better than that of a CE5.
Kind of like Cola in a bottle, for some reason, its just better!