Compatibility : Compatible Spare Parts For Irobot Roomba S9 S9 + Vacuum Cleaner.Roomba Kit: 4X Side Brush 4X Filter.High Performance: The Innovative Brush Penetrates Into The Corners And Edges To Remove More Dirt. And Dust. The Filter Maintains The Cleaning Performance Of The Vacuum Cleaner.Affordable And Easy To Clean. Change: Pay Attention To The Cleaning And Replacement Of Parts, So That The Cleaning Robot Maintains Good Performance. Dust Can Filter The Exhaust Gases And Protect The Vacuum Cleaner Motor. Effectively Protect Against House Dust, Pollen And Mold Spores. Depending On Your Frequency Of Use, Replace The Replacement Kit Every 2 To 4 Months. 3 Months To Keep Your Robot In Good Condition.Suitable For Irobot S9 Sweeping Robot Sweeping Parts And Accessories Features: Easy To Clean. Install And Disassemble To Ensure That Your Vacuum Cleaner Operates At Highest Efficiency Our Maintenance Kit Has Everything You Need, Including Spin-On Hepa Filters, Side Brushes And Debris. For Best Results, The Filter Should Be Replaced. Every 2 To 4 3 Months. Easy To Replace (Regular Replacement Can Help Your Vacuum Cleaner Work Better) Brand New And High Quality; Applicable To; : S9 Robot Vacuum Cleaner