Chamberlain WD822KD Whisper Drive 1/2-Horsepower Belt Drive Garage Access System combines whisper-quiet operation and a powerful, vibration-free motor for dependable performance year after year. Quick and easy to install, this system is ideal for homes that have rooms positioned above a garage, and it includes valuable protection features to guard against injury and unauthorized access to your garage.

» Read more: Chamberlain WD822KD Whisper Drive 1/2-HP Belt Drive Garage Door Opener