Have added them to my business contacts.
I've only been using them for a couple of weeks but the fit is good and they are as good as OEM.
Disc Brush-17 Midlite 3 Lug. Fits Nilfisk Advance CS7000, Captor 4800, SC750, SC800, SC900, SC901, SC6500.
Fits Nilfisk Advance 56505788
This part is listed as fitting the following models: