Electronic Cigarette-Filled Cartomizer Cartridges. 5 prefilled for $7.99. These Pre-Filled cartridges are for the Cartomizer only. Each Pre-filled cartridges comes with a atomizer built into it. So now you don't have to worry about buying a new one!! You can re fill these ones as well. Just need to pop the bottom piece off and fill. Each cartridge that is flavored comes in a different color so you can tell each flavor apart.