Prime Line
Prime-line 25 In. L 70 Lb Garage Door Extension Spring
Description
This extension spring replaces most 7 feet residential garage door springs. It features a 1/8 inch galvanized carbon steel cable that is installed through the spring to prevent injury in case of breakage. This spring is used on a 4 panel garage door. Heavy duty (10,000 cycles) extension springs have double loop ends for extra durability5 sizes will replace most all spring configurations on residential doors that are no higher than 7 feet1/8 inch galvanized carbon steel aircraft cableInstalled through springs to prevent injury in case of breakageUse on single car fiberglass door, 2 springs on door