Check out the new Cthulhu 520 Tank Plus, which is compatible with any Boro device today. With an airflow range between 0.8mm and 4.5mm, this RBA is suitable for MTL vaping and DL vaping.
Each set contains:
520+ RBA Boro tank
Airflow pins from 0.8mm to 4.5mm
Nautilus coils adapter
PNP coils adapter
510 adapter
Adapter base