Difference in Single/Dual Coils

[brickman7]

This may be a dumb question, but I'm a newby. But, can you tell the difference between a single and a dual Kanger coil if looking at them side by side? I'm referring to a Protank 1,2..EVOD vs a Protank 3. Am I making sense. Why I'm asking is that I bought a clone WeChange Realtank Por and the coils look like a Protank coil but they claim that the're duals. And the replacement for the Wechange calls for a Kanger dual. I'm lost.

 

[Katya]

Yup, you can tell the difference by just looking at them.

All dual coils (V1-V3) have taller bodies because they house two coils, on on top of the other.