Sub Ohm Tank
First of all Sub-ohm is actually the name for all coils that have a resistance of less than one ohm.Therefore, a sub-ohm tank , is the atomizer that the coils have a resistance like that. Another factor is that a sub-ohm atomizer will give much more flavor than for example an MTL. You will also see a big difference in the amount of vapor that it will give you. Furthermore, all tanks are 510 threaded, therefore they are compatible with most mods.