The 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.
| SKU | 112992 | UPC | 012381180011 |
| Weight | 5.5 | Package Width | 38.5 |
| Package Length | 3 | Package Height | 2 |
| Model Number | 7708CB-P | Brand | Chamberlain |