Amazon.com: iRobot Roomba Authentic Replacement Parts - Dual Mode Virtual Wall Barrier (2-Pack) : Home & Kitchen
Dual Model Virtual Navigation Wall Barrier For Irobot Roomba I E S 900 800 700 600 500 Serie Replace Part Number 4636429 - Vacuum Cleaner Parts - AliExpress
Dual Mode Virtual Wall® Barrier, 2-Pack | iRobot
iRobot Roomba 890 Wi-Fi Connected Robot Vacuum R890020 - The Home Depot
ROOMBA VIRTUAL WALL SENSOR BARRIER TESTED AND WORKING | eBay
Amazon.com - 2-Pack Dual Model Virtual Wall Barrier Compatible with iRobot Roomba 500/600/700/800/900/e/i/s Series Robot Vacuum. Compare to Part 4636429 -