Chamberlain Group 7710Cb-P 7710Cb 10-Foot, Compatible With Chamberlain Drive Models, Includes Replacement Chain Garage Door Opener Rail Extension Kit, Black

• Fully compatible: the Chain Drive Rail Extension Kit for 10' High Garage Doors is required for reliable, everyday operation of Chamberlain chain drive models in 10 feet garage door applications

• Easy setup: Featuring a quick install extension rail and replacement chain, the kit includes all necessary hardware and instructions for a quick and easy installation

• Includes 1 year warranty, rail extension, replacement chain, all necessary hardware and an instruction manual for easy setup

• Proven quality: rigorous quality testing ensures lasting performance

• About Chamberlain: the largest and most dependable garage door opener manufacturer in North America