110-lbs. Garage Door Extension Spring Replacement Kit, 25'' Long, Double Loop Ends, 1 Pair, Electrophoresis Black Coated

High Quality: Crafted from professional ASTM-A228 spring steel coils, heat-treated for exceptional durability. Utilizes the latest electrophoretic coating technology for superior corrosion resistance and tensile properties. Withstands 300 hours of salt spray testing and a minimum of 16, 000 cycles (a cycle represents one open and close of the door), eliminating the need for maintenance and keeping hands clean during installation.
Double Loop Ends: Features double looped ends for enhanced sturdiness, with two coils of the spring connecting to the eye-bolt and pulley. exclusively offers double looped ends as the preferred replacement option.
Importance of Replacement: strongly recommends replacing springs in pairs to ensure balanced operation and safety. As both springs typically wear at the same rate, replacing only one can result in unequal pulling force, potentially damaging the door and opener.