Chamberlain Rail Extension Kit 10′

GarageDoorPart/AccessoryType: GarageDoorOpenerExtensionKit. MaximumGarageDoorHeight ft.: 10. Intherareeventthatthisisnotthecase wewanttoknowaboutit. Ifthere’saproblem justletusknowandwe’llfixit.

• Proven quality: rigorous quality testing ensures lasting performance.
• Product dimensions: D 49.97 in. x H 1.00 in. x W 1.25 in.
• Chamberlain is the largest and most dependable garage door opener manufacturer in North America.