Premier Commercial...
Chad that was one that came from the trash, I no longer remember when exactly I found it, sometime in the late 80's, but I do still remember where I found it, sitting on the curb in Utah Circle, in the Winston Grove section of Elk Grove Village, about a 5 minute drive from where I live now.
I remember Penneys cleaners from that vintage, I always thought the box top bag model was cool, and have had a couple of those come and go over the years. My favorite was the blue one, it reminds me of the U4005! I don't remember the Premier model in Penneys stores, that was probably a catalog only model. One other place(around here anyway) the Premier would have been available was Polk Brothers, I do remember seeing it there.
Please also note they refer to the white model as a "Convertible"
No hiding they were Hoovers!