Tanks & Atomizers are the pieces of your ecig that do all the hard work. They hold the flavored e-liquid and feed it to the coil so that it can be heated up and vaporized. Because they are so crucial, it is important to pick one that is capable of providing you with the performance you desire, but it can seem a bit complicated at first glance. What's the difference between all the different types you ask? Well here are some quick generalizations.