Clean virtually any hard surface condition to maximize return on investment with a wide range of cleaning options and configurations. Make battery maintenance safer with the new optional Smart-Fill™ automatic battery watering system. The reliable Speed Scrub® 500 Walk-Behind Scrubber provides the right solution for your application with its versatile design, easy to use controls and durable components. *Model Speed Scrub 500 replaces model Speed Scrub 24-32.