P-820A Hard Floor & Carpet Cleaning Machine This Cleaning Machine from Koblenz scrubs and polishes hard floors including hardwood floors and also shampoos carpets. Uses the same type of rotating brushes and pads used by commercial floor machines. Replacement brushes sold separately: Shampoo Brush model # 4501367, Scrubbing Brush model # 4501342, Polishing Brush model # 4501359.