Dear Scott Zuhse,
Thank you very much for the information.
Here is what I would call a pre-mix -
http://www.scot-bev.com/products/beer.html. It cannot accomodate the keg inside and therefore does not refrigerate the keg (the keg can be put under the counter near the machine). If those are not pre-mixes than what is the name you would use for the equipment on the web site.
A US beer distributor says that usually beer distributors not beer companies purchase direct draw units and sell or lease them to bars and restaurants. Do you think this is the most common way for DDU to get to its end-user or bars and restaurants purchase equipment on their own?
Regards,
Dmitry