RTA atomizer for all experienced vapers
First of all RTA stand for Rebuild-able Tank Atomizer.
That means that the atomizer has attached a tank which needs refilling.
Therefore, even though the coils are rebuild-able, the tank will hold your juice. Another factor is all all are 510 threaded. Therefore they are compatible with most mods. Finally, some of the RDAs are compatible with Squanker mods as well.