The generic EVOD features a permanent mouthpiece which is transparent and has a liquid capacity of about 1.7ml. This EVOD Bottom Coil Clearomizer is a unique tank with a replaceable bottom coil system.
The removable metal bottom allows you to simply replace the coil head rather than buying a new clearomizer. Another unique design advantage of the EVOD is that if your coil needs replacing and your tank is full of your favorite e-juice, its easily replaced while the unit is turned upside down without emptying the tank!
EVOD Clearomizers feature a liquid capacity of approximately 2ml.