No a cartomizer has an atomizer inside of it. So you will screw it directly to the battery. It takes place of a atomizer with a cartridge.
Their are many different sizes of cartos. The smaller ones generally hold about 1ml of
juice and their are large ones that hold about 5ml. I use the Ressurector cartos and they hold alittle over 2ml of
juice.
I highly recommend filling them with a syringe