Garage Door Extension Spring For 8'Ft.- 140 lbs Dark BlueGarage Door Extension Springs for 8' High Single Loop Professional high tensile steel, Rated 10,000 Cycles 27" relaxed; will stretch to 48 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

Premium Construction: Crafted from heavy-duty aluminum and stainless steel materials

Provides flexibility for various garage types and door configurations

Made of steel with a zinc-plated finish

and (1) End Rail Section

our knee pads are built to withstand heavy use

Convenient access to your garage without using a remote control or key

measuring 4

perfect for replacing old or rusty springs

Also known as: 4178B0035B

For use with 1-3/4" inside diameter springs

Please note

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