RooR Tech: Micro Roboto Bubbler

BTW someone needs to up a YouTube vid of this in operation (just air, no need to dab), as it's kinda hard to picture the action. It can't be as simplistic as it seems, with just a natty perk into the outer ring chamber, then bubbles spilling through the three holes into the centre? Is there some sort of incycling action or something? It seems like the holes far away from the downstem exit will see a lot less flow. Googled it and found no vids. :c

If you get a female bowl, yes. Most bowls are male, though, as most (i.e. non-oil) pieces have female input. A female bowl may cost slightly more, and are harder to source, but still aren't very expensive for a generic one. It'd also work with a normal 14mm bowl or even a Pinnacle too, if you bought a 14mm female/female adapter, which are about US$10-20 or so.

Can this be used for something other than wax or oils? Even replacing the 14mm male piece with a standard bowl?