Compatible with Roomba Battery Accessory Ni-MH 3.5 AH Battery and Accessory Part Kit 500 Series 500 510 520 530 531 535 536 540 545 550 a Set of 10 - Walmart.com
Dust Collecting Box Filter Bin Collector for iRobot Roomba 500 Series Vacuum Cleaning Robots 560 570 580 52708 551 527 530 535 _ - AliExpress Mobile