I got mine used a few years ago. $100.00 They did not know what it was. I bought it just looking at a picture. Figured I would not be out too much. Took a chance and love it.
It is an older model though. The handle is only one side. A little flimsy. after I got it I started looking for parts, just in case. Drew? I think , at
Excellent supply said they could get parts if needed.
I use it mainly for pre-scrubbing prior to HWE. Trashed rentals. Many times because of the nice look while scrubbing the customer thinks the clean has already been done.
Though sometimes post scrubbing Kil -Odor plus for odor. It has solution tanks, gravity feed.
The brushes push the debris toward the center.
I think the Brush Pro type pushes toward the outside, to be captured in trays?