iRobot Scooba 230 Bottom Plate 3-Pack Replacement Kit Maintain cleaning performance and keep your scooba 230 running like new Easily snaps on and off so rinsing the brushes and squeegee is fast and simple The box includes; 3 bottom replacement pieces The bottom plate snaps on and off without tools, making it fast and easy to rinse the scrubbing brushes and the squeegee after each use