i have one. I just took these pictures of the hard surface wand. I recently picked up some new squeegees at Steam Way International last month and attached them to the wand.
I had one of the original 2 jetters. Talk about streaky jobs lol.
Converted it to a 4 jetter and it worked pretty good except for the edges.
The angle and shortness of the vac tube is a killer on any humans back.