Overview Reviews Product Description This kit will extend the 5 piece, chain drive c-channel rail for a 7' high door to an 8' high door. Compatible with Genie Models: 1035, 2035, 2036, 3035, 7035 Please see the plate on operator head for your specific opener Model information. Product Videos Product Reviews Write a Review Write a Review × EXTENDER KIT (GENIE) - 8FT CHAIN TUBE Review Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments * Recaptcha: