Ralph:
The dispenser is basically just a removable water tank mounted on the inside of the door - you take it to the sink for refills, I understand.
No plumbing - it's just a glorified, more convenient iced water pitcher. Which is something I don't mind.
P.S.: The dispenser model shown in the first post is now deleted from CL.
P.P.S.: The Shelvador model shown in Tim's post seems to have all its shelves, but no crisper drawers.