... water level sensor in the recovery tank, protects suction motor better Big size cap design for recovery tank, ... level design, better for the environmentAdopted maintenance-free brush motor, brings huge powerAdjustable brush pad assisted system, easy ... 45Brush Driving Modemetal gear reduceBrush Speed(rpm)180Brush Motor(w)800Suction Motor(w)600Driving SystemBrush AssistedEfficiency(m2/h)1500Installed ...