If you buy the LP, low profile, REO it can be used with any atty. Being a bottom feed device, you won't get maximum benefit from it unless you use a bottom fed atty.
I'm new to Reoville and didn't really want to mess with buying new atomizers, asked about using my Kayfuns and wanted to make sure they would work.
Now a week later I have bought 2 more bottom feeders and am about ready to sell off the Kayfuns.