Review on 🧹 Theresa Hay RoboVac Accessory Kit | Filters, Side Brushes, Rolling Brush | Compatible with Eufy RoboVac 11S, 30, 30C, 15C by Alina Manley

It took a lot of reading and looking at the photos posted by the reviewers, but eventually it turned out through the overwhelming body of evidence that this set would match the dser R3721 I bought in December 2020. To the Several offers for additional parts/filters were available at the time. I decided to wait to make sure the vacuum is working before ordering more for the future. But in late Spring 2021, when I decided to order more filters so I didn't have to wait for one to dry before reusing, the wrong brand's model and extra kits were no longer available on Amazon. I read and it seemed to me that eufy is an export model of a domestic dser used in China. I decided to order this set as the sizes matched [thanks to other reviewers for posting such details and photos!]. ordered separately.