Turbo and EZ are the same size insert, The Turbo inserts are way better and last longer.
The loose fitting dome works great in you are in a low humidity situation. I'm in the high desert and rarely use it and it's 15%rh here today.
I have to run mine with a cup of bleach in it for a day and clean the sprayers every cycle or I get pathogens. I also use pool shock in mine when the temps get high.