Pair of 150lb. Heavy Duty Garage Door Extension Springs Stretch Springs, 25" Long,Double Loop Ends, High Precision Electrophoresis Black Coated, MIN 16,000 Cycles, for 7ft High Garage Doors

DIMENSION: One pair of 150 lb. heavy-duty garage door extension springs in red. Each spring measures 25 inches at rest and 67 inches when fully stretched. Designed to fit Tall configurations on residential doors that are no higher than 7 ft.
PACKING INCLUDED: One pair of Garage Door Extension Springs, one pair of Non-Slip Gloves, and Installation Instructions are included in the package, so you can start installing immediately after receiving the product.
HIGH QUALITY: Made from professional ASTM-A228 spring steel coils that have been heat-treated for high durability. Electrophoretic coating technology provides corrosion resistance and tensile strength. Salt spray testing lasts up to 300 hours, with a minimum of 16, 000 cycles, where one cycle equals one door opening and closing. The springs require no routine maintenance and help keep your hands clean during installation.
DOUBLE LOOP ENDS: Double loop ends are sturdier than open loops because two spring coils connect to the eye bolt and pulley. Only double-looped ends are offered as the preferred replacement option, and these double-looped ends can replace any end type.
IMPORTANT: Replacing the springs in pairs is recommended. Both springs are typically the same age and have similar wear. When one spring breaks, the second spring may also be near the end of its operating cycle and may break soon. A newer spring may exert more pull than an older spring, causing the door to open and close with an unequal amount of pull on both sides. This can damage the door or garage door opener and create an unsafe condition