Chamberlain 7708CB Chain Drive Rail Extension Kit, For Use With 8 ft High Garage Doors

CHAIN DRIVE RAIL EXTENSION KIT FOR 8' DOORS For use with Chamberlain Power Drive chain - drive garage door openers featuring the - quick-install rail system Works on garage doors up to 8 feet high Includes rail extension, replacement chain/- cable and all necessary hardware 7708CB-P 8 FT. CHAIN EXT RAIL KIT SIZE:For 8 Ft. Door COLOR:Black Item is located in Port Robinson, if the item is listed its available.