Replacement iRobot Roomba 500 Series Filter, Bristle Brush, Flexible Beater Brush, 6-Arm Side Brush and Brush Cleaning Tool - Kit Includes 1 Filter, 1 Bristle Brush, 1 Flexible Beater Brush, 1 6-Arm Side Brush and 1 Brush Cleaning Tool Replacement iRobot Roomba 500 Series Filter, Bristle Brush, Flexible Beater Brush, 6-Arm Side Brush and Brush Cleaning Tool The Brushes allows your Roomba to reach deeper into the carpet for a more thorough cleaning Replace filters every 2 to 3 months for best performance Please check your Roomba to make sure you are purchasing the correct parts On Sale for a Limited Time!