I clean Replacement iRobot Roomba Parts 770 760 780 650 620 630, 5 Packs Flexible Beater Brush for iRobot Roomba Vacuum Cleaner (600&700Series) Compatible: Fit for iRobot Roomba 600 700 Series (620 630 650 660 680 760 770 780 790) Vacuum Cleaning Robots. Warranty:30 days replacement or refund, Please Feel Free to Contact us first. Replace and clean your iRobot roomba bristle brush every 2-3 months for Keep your iRobot Roomba operating at peak performance! These roomba vacuum cleaner parts can maintain Roomba's cleaning performance while reducing infiltration of dust, pollen and other allergens into the air you breathe. What can you get: 5 packs Flexible Beater Brush for iRobot roomba 600&700 series