Amazon.com - iRobot Roomba Authentic Replacement Parts - Roomba 800 and 900 Series High-Efficiency Filters (3-Pack) -
Amazon.com: Odashen Side Brush Motor Module for iRobot Roomba 500 600 700 800 900 I3 Series Robot Vacuum Cleaner (Replacement Motor Module + Side Brush +Screwdriver) : Industrial & Scientific
iRobot Roomba Authentic Replacement Parts - Roomba Integrated Dock Charger with North American Line Cord - Compatible with Roomba 500 600 700 800 900 Series Robots - 4452369 , Black: Amazon.com: Industrial & Scientific