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.
40 Inch cylindrical 80 Grit abrasive Scrub Brush. Fits Nilfisk Advance SC6500, Condor 4030, Condor 4030C AXP, Condor 4030C, Condor X4030C EcoFlex
Fits Aftermarket Nilfisk Advance 56413116 80 Grit Brush
This part is listed as fitting the following models: