iRobot Roomba 585 Filters and Side Brushes - Kit Includes 3 AeroVac Filters and 3 6-Arm Side Brushes Replacement iRobot Roomba 585 Filters and Side Brushes 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!