Because I did not want to rebuild the Aero coil head!
Kanger Aero coil head and Kanger Protank Coil head side by side.
Remove the protank silicone cap.
Insert 6mm dia x 4mm tall nylon standoff, replace silicone cover over standoff.
Protank coil head in Aero tank Bottom
All assembled.
The protank is easier to rebuild and maintain. This simple trick will allow you to use your protank coil heads in you aero tank.
Kanger Aero coil head and Kanger Protank Coil head side by side.

Remove the protank silicone cap.

Insert 6mm dia x 4mm tall nylon standoff, replace silicone cover over standoff.

Protank coil head in Aero tank Bottom

All assembled.

The protank is easier to rebuild and maintain. This simple trick will allow you to use your protank coil heads in you aero tank.