Hi and welcome
What is a Rebuildable Tank Atomizer (RTA)?
A rebuildable atomizer differs from a standard tank or clearomizer in that it does not utilise pre-build coil heads, but you make the coils yourself using kanthal, titanium, nickel or stainless steel wire and you wick it using a suitable material--usually Japanese Organic Cotton. Rebuildables are sought after by those looking for complete control over their vaping experience and are generally not recommended for use by beginners or even intermediate users.