Chamberlain Belt Drive Rail Extension Kit for 8 ft. Garage Doors

The Belt Drive Rail Extension Kit for 8 ft. High Garage Doors is required for reliable, everyday operation of Chamberlain belt drive models in 8 ft. garage door applications. Featuring a quick-install extension rail and replacement belt, the kit includes everything needed for quick and easy installation. Includes one-year warranty, rail extension, replacement belt, all necessary hardware and an instruction manual for easy setup.|Proven quality: rigorous quality testing ensures lasting performance|Product dimensions: (D) 37.70 in. x (H) 1.00 in. x (W) 1.25 in.|Additional assurance with 1-year warranty|Chamberlain is the largest and most dependable garage door opener manufacturer in North America