A rebuildable vape tank (RTA) is a tank that allows you to build your own coils using your own material. Using your own materials and constructing a coil works out a lot cheaper than buying premade coils. Many people say the flavour is more intense when building your own coil too, whether its for MTL vaping or sub-ohm vaping. There are different varieties of rebuildable tanks, like RDAs (rebuildable dripper atomisers). These tanks are designed to have drops of e-liquid placed on them as you vape so the cotton doesn’t dry out. There is no refillable tank that accompanies this coil, so you must drip your e-liquid on manually to vape. This usually produces a high amount of flavour and a smoother vape, though it takes some practice to build efficiently. RTAs (rebuildable tank atomisers) feature the same aspect of building the coil, however, they are surrounded by a tank that you can re-fill with e-liquid. The cotton in the coil re-wicks from this tank.