Blue Aero Vac Filter & Bristle Brush & Flexible Beater Brush & 3-Armed Side Brush Pack Replenishment Mega Kit for iRobot Roomba 600 Series (620 630 650 660 680) Vacuum Cleaning Robots (3- Brushes) Plastic Imported Compatible with: iRobot Roomba 600 Series (620 630 650 660 680) Vacuum Cleaning Robots ( the filters only compatible with AeroVac Bins) Clean brushes keep your home robot operating at peak performance. Side brushes are easy to remove and replace as part of routine maintenance. Replacement filters for iRobot Roomba 600 Series and Roomba Professional Series Robots. Filters maintain Roomba's cleaning performance while reducing infiltration of dust, pollen and other allergens into the air you breathe.For best results, filters should be replaced every 2 - 3 months.