Infinuvo Authentic Maintenance Kit for Hovo 650 and Haier Robotic Vacuum Cleaners, 1 HEPA filter, 1 Pre-filter and 2 Side Brushes Replace filters and brushes regularly to help maintain peak performance. This replacement kit includes 1 pre-filter, 1 HEPA filter and 2 side brushes. Works for Hovo 600, Hovo 620 and Hovo 650 robotic cleaner. COMPATIBLE MODELS: TechComm B2005P, Q7000, B6009, Liectroux B3000, Eventer Robins Robot, Haier Robot, Diggro C200, Haier XShuai Bagless Robotic Vacuum Cleaner Fmart E-R550W