Genie EKTC 8ft Chain Drive Garage Door Opener Extension Kit for Tube Style Chain Rails

This chain drive 8ft extension kit will extend the 5 piece, chain drive tube rail for a 7′ high garage door to accommodate an 8′ high garage door. This extension kit is specifically designed for Genie chain drive model garage door openers that use the tube style rail. Models that this garage door opener extension kit works on, are models 2035, 3035, 2033, 7035