Review on 🔧 ANBOO Replacement Parts for iRobot Roomba 600 Series 694 692 690 680 660 665 651 650 614 & 500 Series 595 585 564 - Filters, Side Brushes, Bristle Flexible Beater Brush Pairs by Jill Foster

My trouble. In my haste I checked where in the description it says that the side brushes are not compatible with the 645 and 655 models. For the 655, get the 800/900 robotic side brushes. 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.