$13.00
Vacuum Bags for irobot Roomba Vacuum Cleaners, Replacement Parts for i3, i3+, i7, i7+, i8, i8+, i4, i4+, i1, i1+, i6, i6+, j7, j7+, s9, s9 Plus, i & s j Automatic Dirt Disposal Unit (12PCS)Amazon$7.99
WuYan Replacement Caster Assembly Front Castor Wheel for xiaomi for iRobot Roomba Vacuum Cleaner 500 600 700 800 Series 560 620 650 770 780 880Amazon$41.99
melasta 14.4V 5400mAh Lithium ion Battery Replacement for Roomba 900Series, Roomba Vacuum Cleaner Compatible with iRobot Roomba 980 981 985 970 960 961 964Amazon$12.99
Gusnilo 2 Set Replacement Rubber Brush Roomba Replacement Parts Compatible for iRobot Roomba Vacuum Cleaner i e j Series E5 E6 i7 i7+ i7 i6 i6+ i3 i3+ i4 i4+ i8 i8 j7 j7+ Multi-Surface Rubber BrushAmazon