Prime-Line 25 in. L 70 lb Garage Door Extension Spring PLUNGERS/OPENERS National Hardware is the leader

National Hardware is the leader in builders hardware today with more than 15 product categories and over 7

It is heat-treated and has a black powder-coated f

Specially designed heat-treatment cycle for unriva

Precision machined

Prime-Line 25 in. L 70 lb Garage Door Extension Spring PLUNGERS/OPENERS National Hardware is the leaderThis 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. SPECIFICATIONS Heavy duty (10,000 cycles) extension springs have 5 sizes will replace most all spring configuration 1 8 inch galvanized carbon steel aircraft cable Installed through springs to prevent