Work Great This replacement parts kit fit for iRobot Roomba 800 series 850 860 861 864 866 870 871 880 890 891 & 900 series 960 961 964 980 robotic cleaner. 1+6+6 Design - 1 set Tangle-Free Debris Extractor + 6 pcs Filter + 6 Side Brushes with 2 brush in one set help your always have one filter ready to be used. Just say goodbye to the days of worrying about the lack of additional filters to replace. Upgraded 99.98 Adopting two-in-one design and double-layer filter, the premium Vacuum filters Quality Above All Else Made of latest high-strength materials, our 800 and 900 Series Replenishment Kit are designed to outlast our competitors on the market Easy to Install Free your hands from the complicated replacement steps. No extra tools needed. To ensure your vacuum works properly and optimally, it is recommend to replace the 800 and 900 Series Replenishment parts every 2-4 months depending on your usage. Replenishement Kit for iRobot Roomba 800 900 Series 850 860 861 866 870 880 890 960 9801 set Tangle-Free Debris Extractor + 6 pcs Filter + 6 Side Brushes with 2 cleaning brush in one set help your always have one filter ready to be used. Just say goodbye to the days of worrying about the lack of additional filters to replace. Easy to Install Free your hands from the complicated replacement steps. Made of latest high-strength materials, our 800 Series Replenishment Kit premium HEPA filters