14 Inch disc aglite grit 500 abrasive brush for 28 inch machine. Fits Nilfisk Advance Adgressor 2820D, CMAX 28ST, Convertamatic 24-32, Hydro Retriever 2800, SC750, SC750ST, SC800, SC800ST, SC900ST, SC901 (replaces 56505773)
Fits Aftermarket Nilfisk Advance 56505803 500 Grit Brush
