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Amazon.com: HQRP 3300mAh APS Battery Works with iROBOT Roomba 531/533 / 536/537 / 551/561 / 563/564 / 571/577 / 578/600 / 611/790; 800/880 Series [Vacuum Cleaning Robot] Replacement : Home & Kitchen
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iRobot Roomba 531 - ROBOTIC VACUUM CLEANER - w/dock, tested good [0131210516] - $45.00 : EdsGoodStuff, it's all good
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Amazon.com: AC Adapter for iRobot Roomba 531 533 536 537 551 561 563 564 571 577 578 600 611 790; 800/880 Series [Vacuum Cleaning Robot]; 80501 APS #80701 Power Cord : Electronics
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FAST DEAL! iRobot Roomba 531 Robotic Vacuum Cleaner, TV & Home Appliances, Vacuum Cleaner & Housekeeping on Carousell
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Synergy Digital Vacuum Cleaner Battery, Works with iRobot Roomba 531 Vacuum Cleaner, (Ni-MH, 14.4V, 4000 mAh) Ultra High Capacity, Compatible with Auto Cleaner 11702 Battery - Walmart.com
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