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DURA-LIFT 170 Pound Heavy-Duty Extension Garage Door Spring 2-Packs are extension spring replacements for broken sectional garage door extension springs for 7' tall doors. All DURA-LIFT garage door extension springs are manufactured from oil-tempered spring wire meeting ASTM A229 and are designed for a minimum of 10,000 door open and close cycles. Double-looped ends are standard to add double the resistance strength.

  • 170 POUND WEIGHT CAPACITY - springs for 170 pound sectional garage doors using extension spring system
  • DOUBLE LOOPED ENDS FOR STRENGTH - two loops to connect pulley system extend the cycle life of the springs
  • SIMPLE INSTALLATION - install new or replace old, rusty springs quickly, make sure to measure the weight of your door (professional installation recommended)
  • CORROSION RESISTANT - coated steel coils to help slow rusting process over spring life
  • 1-YEAR WARRANTY - springs are warranted for 1 year from purchase date

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