eufy Replacement Side Brushes | Compatible with E25 and E28Genuine eufy Replacement Side brushes for Robot Vacuum E25, E28 & S1 Pro. Compatible with eufy Robot Vacuum Omni E25, E28 & S1 Pro. To keep your Robot Vacuum Omni E28 E25 operating at peak efficiency, replace the brush every 3 months, depending on usage frequency. Soft, flexible bristles clean effectively without damaging floors or furniture. No tools required, easy to replace the side brush. Important Note: For the best performance and to extend your