1/2 HP motor with industrial-strength, rugged chain drive. Quick-and-easy-to-install 5-piece rail system fits most garages with 7' high garage doors - extension kits required for garage doors that are 8' (model 7708CB) or 10' (7710CB) in height. Delivers 75 watts of light with adjustable light time delay.
| | Chamberlain Consumer Group CG40D 1/2 HP Garage Door Opener |  | 159.92 |  |
 | Chamberlain CG40D Garage Door Chain Drive Opener - 1/2 hp |  | 159.99 | |
 | 1/2 HP Garage Door Opener CG40D |  | 189.01 | |
 | Chamberlain 1/2 HP Chain Drive Security+ Garage Door Opener |  | 190.49 | |
| | Chamberlain Consumer Group CG40D 1/2 HP Garage Door Opener | 159.92 | | |
 | Chamberlain CG40D 1/2 HP Garage Door Opener |  | 187.92 | |
 | Chamberlain Consumer Group CG40D 1/2 HP Garage Door Opener |  | 193.05 | |