Eufy RoboVac 11s, 30, 30C, 15C replacement parts by seller Theresa Hay 

amzn.to/2X2aNyy
Replacement parts review and installation.
Theresa Hay Accessories Kit for RoboVac 11S, RoboVac 30, RoboVac 30C, RoboVac 15C, Robotic Vacuum Cleaner Replacement Parts Filters, Side Brushes,Rolling Brush
Link to this item here.
amzn.to/2X2aNyy