Amazon.com - JoyBros Replacement Parts Accessories Compatible for iRobot Roomba All 600 Series: 670 671 675 677 690 692 694 650 665 Side Main Roller Brush Filter Wheel Tires -
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Amazon.com - ECOMAID Replacement Parts for iRobot Roomba 600 Series 690 694 692 680 660 665 651 650 614 & 500 Series 595 585 564,6 Filter,6 Side Brush,3 Pairs Bristle and Flexible Beater Brush -
Amazon.com: I-clean Replacement For iRobot Roomba 690 650 645 770 790 780 Parts, Compatible with iRobot Roomba 600 700 Series Vacuum Cleaner Accessories (Front Wheel,Filter,Bristle brush,Armed Brushes) : Home & Kitchen