... easy to rinseWith water level sensor design in the recovery tank, protects the suction motor betterLow noise level suction motor device ... detergent easilyTransparent hose, you can easily check the water lever in the solution tankThere is a special opening in back ... Italy original high-frequency on board charger, you can charge the battery easy, brings high working efficiency ModelFS 20WBrush Dia.(mm) ...