Garage Door Extension Spring For 7'Ft.- 140 lbs Dark Blue
- Garage Door Extension Springs for 7' High - Single Loop
- Professional high tensile steel, Rated 10,000 Cycles
- 25" relaxed; will stretch to 42"
Note: These springs are for use on standard sectional doors only, The only way to get the proper extension spring is by door weight.. we recommend using a bathroom scale to weigh the door before ordering..we cannot tell you what your door weighs from a description of the door