Okay, Although the DID looks interesting, my understanding (looking at different reviews) is that it still has to have the "tank" for it to work- It has a center post that has to be attached through the tank (that has male threaded connections at both ends) to the battery end and the atty end. The actual atty part of the atty that we would be interested in on a Reo has female threading (and its diameter looks very large), so unless you can get a very short male-to male adapter, I see no way that this can work on a Reo. Even if you can, I'm thinking it would be to large for the juice well on any Reo. Correct me if I'm wrong.