The brush fits exactly. The belt had a worn groove in the wood of my original brush. The metal ball for the magnetic sensor in this brush is not closed like in my original one. It's fine, but make sure the brushroll is installed properly so it doesn't come into contact with the cartridge. I didn't realize how worn my original roller was. I should have replaced it a long time ago.
iRobot Roomba 692: Smart Robot Vacuum with Wi-Fi, 🤖 Alexa Compatibility, and Pet-Friendly Features for Effortless Cleaning on Any Surface
138 Review
Vacuum cleaner Deerma DX700, white
240 Review
Xiaomi Mi Robot Vacuum-Mop Essential Robot Vacuum Cleaner, white
284 Review
Vacuum cleaner Deerma DX118C RU, white/grey
144 Review