3-Pack iRobot Roomba 4150 Side Brush - Replacement for the iRobot Roomba 400 Series Brushes - Walmart.com
IRobot Roomba Vacuum Robot Discovery Model 400 Series need new battery only used | eBay
14.4V Vacuum Replacement for iRobot Roomba 400 Series Robotics - MightyMaxBattery
14.4V Vacuum Replacement for iRobot Roomba 400 Series Robotics - Walmart.com
My Roomba 400 series iRobot in Action! [4162] - YouTube
Roomba - Wikipedia
Amazon.com: T POWER 22V Charger for IRobot Roomba 400 500 600 660 670 700 760 770 780 790 880, 400, 500, 600, 700, 800 Series Vacuum Cleaner Full Range of Sweeping Machines Ac Dc Adapter Power Supply : Electronics
The Roomba® 400/Discovery series essential care and maintenance procedures.
User manual iRobot Roomba 400 (English - 28 pages)
1pc Rubber Bumper Guard Black Pad for iRobot Roomba 400 500 600 700 Series