Prime-Line 25 in. L 70 lb Garage Door Extension Spring PLUNGERS/OPENERS ⬥Precision-tested for safety: Each gas

⬥Precision-tested for safety: Each gas valve undergoes rigorous testing to meet the highest standards for gas flow and safety

⬥Durable Steel Construction: Made from high-quality steel

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

End 3 Diameter: 3-inch

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

Prime-Line 25 in. L 70 lb Garage Door Extension Spring PLUNGERS/OPENERS ⬥Precision-tested for safety: Each gasThis 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