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.
14 Inch disc prolene polypropylene brushfor 28 inch machine.Fits Nilfisk Advance Adgressor 2820D, CMAX 28ST, Convertamatic 24-32, Hydro Retriever 2800, SC750, SC750ST, SC800, SC800ST, SC900ST, SC901
Fits Aftermarket Nilfisk Advance 56505804 Poly BrushThis part is listed as fitting the following models: