General description The Replacement Parts Kit is designed for compatibility with various Roomba models, including the i7, i7+, E5, E6, E7, and others. This comprehensive kit includes essential components to maintain optimal cleaning performance. Technical specifications Includes 11 pieces: 3 HEPA filters, 3 3-arm side brushes, 1 bristle roll, 1 flexible brush, and 3 screws. Made of high-strength, environmentally friendly materials. Compatibility and accessories Compatible with Roomba models: E5 (E5134), E6 (E6198), E7, i series (i7 (7150), i7+ (7550), i1+ (1552), i4+ (4550, 4552), i3+ (3550), i6+ (6550), i8+ (8550), j7). Usage To maximize cleaning performance, clean the rooms twice a week. Replace the accessories every 8 weeks.