Replacement Dual MultiRubber Brush Kit for Replenishment Parts (E5 E6 E7 i7 i7+i6 i8 i3 i4 Plus 3150 E&I Series) Why you need this Keeps your robotic vacuum cleaning at peak performance by maintaining consistent contact with floors and carpets. Prevents hair and fiber buildup: dual multirubber brushes are designed not to tangle with pet hair, reducing maintenance and downtime. Maintains suction and cleaning efficiency—worn or tangled brushes reduce pickup and can leave debris behind. Key features Dual MultiRubber Brush Design: Two rubber brushes work together to lift dirt and debris while resisting hair tangles. Flexible Contact: Brushes adjust and flex to remain in constant contact with both carpets and hard floors for more effective cleaning. Material: Multirubber construction for durability and hair resistance. Replacement Interval: We recommend replacing brushes every 1–3 months, depending on use and household conditions, to sustain performance. Compatibility Compatible with vacuum replenishment parts and replacement kits for models: E5, E6, E7, i7, i7+i6, i8, i3, i4 Plus, 3150, and E&I Series. Performance benefits Improves cleaning consistency across different surfaces by maintaining edge and center contact. Reduces time spent detangling brushes and extends the effective life of your robot's cleaning system. Helps the robot maintain suction efficiency and thorough debris pickup. Practical use scenarios Homes with pets: Regular replacement prevents hair wrap and maintains strong pickup on tile, hardwood, and carpets. Mixedfloor homes: Brushes flex to transition between rugs and hard floors without losing contact, improving overall cleaning results. traffic households: every 1–3 months to avoid performance dropoff during periods of heavy daily use. What to expect A direct replacement brush kit designed to match the original function and fit for the listed models. Regular replacement keeps your vacuum running as intended and reduces the need for additional maintenance.