Review on 🧹 Compatible 3-Armed Side Brush Replacement for iRobot Roomba 500 600 700 Series 550 560 630 650 760 Robotic Vacuum Cleaner – Enhanced Cleaning Accessory by Tiffany Villavicencio

Bad. I checked in a hurry where the description says the side brushes are not compatible with the 645 and 655 models. For the 655 model, purchase the side brushes for 800/900 series robots. I can't comment on the 645 model, but the following might help. If your Roomba has a gray brush side mount, you will need the same brush as the 800/900 series. You can confirm this on the i-Robot website. No stars because the seller mentioned incompatibilities and the products seem to be of decent quality. If Roomba has a blue brush side mount, you will need 500/600/700 series brushes.