The Genie 37303R garage door opener extension kit from Garage Door Supply Company will allow a 7-ft. Genie operator to be installed on garage doors that are up to 8 ft. high. This 373034 screw drive garage door opener extension kit is compatible with the Genie PowerMax 1200 model 4062-TKV screw residential garage door opener. With the extension kit, this garage door opener model that's designed for doors up to 7 ft. high can be used on a door up to 8 ft. high.
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