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