A dual brush design (24" cleaning width), a steel chassis, and a aluminum brush base/pick-up tool. Die-cast aluminum brush deck. Delayed vacuum motor shut off eliminates pooling. Filter assembly and auto-float shutoff protects vacuum motor. Two pad pressure settings for flexible cleaning. On-board charger, pad drivers, and squeegee assembly included. Quickly change-out squeegees, pads, or brushes without tools. Emergency shutdown system. Variable speed traction control.