Chamberlain 10 Ft. Garage Door Chain Drive Rail Extension Kit Brand_Bellingham Deep drawn construction means no

Deep drawn construction means no top or side beams

Use ROCKITE to patch holes & cracks

Use With Drill

filament style

guaranteed fresh for 10 years

Chamberlain 10 Ft. Garage Door Chain Drive Rail Extension Kit Brand_Bellingham Deep drawn construction means noThe Chain Drive Rail Extension Kit is required for reliable, everyday operation of Chamberlain chain drive models. Featuring a quick install extension rail and replacement chain, the kit includes everything needed for quick and easy installation. Includes one year warranty, rail extension, replacement chain, all necessary hardware and an instruction manual for easy setup.