Applicate Model: Fit for N79 N79S N79SE N79W N79T 661 600 D601 500 DN622 DN622.11 DN622.31, K600 K700 Robot Vacuum Cleaner. (Please confirm your Vacuum Cleaner model before purchasing) Main Side Brush: Newly designed anti-winding main brush, roller brush can be rotated to adjust, can sweep dust into dust box and prevent hair entanglement. Edge-Sweeping brushes help you get deep into corners and snug against walls and baseboards to an excellent clean area. HEPA Filter: The hepa filter can maintain the cleaning performance of the sweeper, while reducing the penetration of dust, pollen and other allergens into the air you breathe. Primary Filter: Maintain the cleaning performance of your robot, prevent and reduce damage to sensitive of machine. Easy to Install: It is easy to be replaced and installed on your robot vacuums. To keep your robot running at performance, the parts are recommended to be replaced every 2-3 months. Model Number:For RoboVac 11 11C Excellence 990 N79S Type:Vacuum