The Belt Drive Rail Extension Kit for 8'High Garage Doors is required for reliable, everyday operation of Chamberlain® belt drive models in 8ft. garage door applications. Featuring a quickinstall extension rail and replacement belt, the kit includes everything needed for quick and easy installation. Includes oneyear 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