Just saw this on Craig's list

Guy was selling a Kegerator and had a compression fitting on the outside of the fridge.  It looked like it had threads and it was for the CO2 bottle.  I thought that was kinda cool and wondered what it could be and how bad it would be to put it in  I wouldn’t mind getting the CO2 tank on the outside of the fridge to open up some room in there, and that seems to be a good way to do it.  Any thoughts?

Also, anybody have a used tower to sell?  I don’t need the tap but just the tower.  The guy I bought the setup from used regular pipe.  It works but looks kinda cheap and my wife hates it.  LOL.  So I just thought I would ask and see.  Have a great day guys.

RR