Prime-Line® has been supplying repair and replacement parts for windows and doors since 1978. This sectional door extension spring from Prime-Line® features a double-looped end design, providing superior strength and extra durability. This spring is typically used on single-car fiberglass garage doors and can replace most configurations on residential models no higher than seven feet. Its heavy-duty construction helps prevent breakage and resulting injury. This package also includes a 1/8-inch diameter, galvanized carbon steel aircraft cable that acts as a safeguard if the spring is ever damaged or broken.
Brand Name: Prime-Line
Features
- Replace all door springs, even if only one has broken – safety cables protect against injury
- Heavy-duty 10,000-cycle extension spring
- Rated at 50 pounds
- Install cable through springs to prevent injury in case of breakage
- Intended for use on single-car fiberglass doors
- Includes 1 spring
- Made in the USA
- Extension springs with safety cable measure 25″ long













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