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Chamberlain® 1/2 HP Chain Drive Garage Access System
The CG40D 1/2 HP Chain Drive is steady and reliable. Its durable 1/2 HP motor and chain drive
provide continual, steady performance. The quick-install rail system provides faster and easier
installation, and the system delivers 75 watts of light with adjustable light time delay. It is
HomeLink® compatible and includes 1 single-button remote control and illuminated door control
button. This model has earned the Good Housekeeping seal.