Side Brush Cover Parts Kit For Robot Vacuum RoboVac 11S RoboVac 30C 30 15C product description Replacement parts compatible with RoboVac 11S / RoboVac 30 / RoboVac 30C / RoboVac 15C / RoboVac 12 / RoboVac 35C Includes 8 cleaning, 8 side brushes, 1 rolling brush Tips and tricks: 1. Please clean the filter frequently, and replace the brush every 2-3 months, the filter (depending on the frequency of use) to keep the vacuum cleaner working properly In high performance. 2. If the side brushes are bent due to transportation, just immerse them in warm water for a few minutes to recover. How to replace the filter: 1. Press the release button on the collector and. 2. Open the filter door and the old filter unit. 3. Install a new filter unit and close the filter door. (Make sure there is a black sponge filter at the bottom) 4. Insert it into the collector to lock it in place. How to replace the side brush: 1. Turn RoboVac over to the maintenance side brush. 2. Use both hands to the old side brush. 3. Pull the hair hard to it. 4. Press the new side brush to snap it into place. How to replace the roller brush: 1. Press the release tab to the shield. 2. Hold the old roller brush firmly and and take it out. 3. the end lugs of the new rolling brush and the slot correctly for installation. 4. Replace the brush cover and press it into place. The packaging includes: 8 X high performance filter; 8 X side brush 1 x roller brush