28 Inch cylindrical soft nylon scrub brush. Fits Clarke Focus II Midsize (28 Inch) AND Nilfisk Advance Adgressor 2820C, AquaRide, Convertamatic 24-32, Hydro Retriever 2800, SC750, SC750ST, SC800, SC800ST
Fits Nilfisk Advance 56412191 (alt # 56412191)