Solution distribution from brush center. CWS (constant weight system). Exclusive squeegee system assures high performance at low cost. Great maneuverability thanks to an optimum weight distribution. Recovery tank discharge point and hose at maximum height. Brush replacement without tools squeegee blade can be used on four sides before replacement. AFS (Anti- Foam System). Battery level indicator. ANC-Advance noise control system. Adjustable handle – easy to use.