General description FLITI Vacuum Cleaner Filter and Brush Set is a comprehensive spare parts accessory kit designed for iRobot Roomba Series I models including i3, i3+, i4, i7, i7+, E5, E6, and E7. This kit includes essential components to keep your vacuum cleaner operating at peak performance. Technical specifications Includes: 1 main brush, 3 side brushes, 3 HEPA filters, and 3 screws Material: Durable and environmentally friendly Installation Easy to install, allowing you to resume cleaning quickly Usage Recommended to replace the brushes and filters every 2 to 3 months, depending on usage frequency