Prime Line Products F 2537 Wood Window Sash Spring 2 Pack

Product Description

The PRIME LINE PRODUCTS F 2537 is a zinc-plated steel sash spring designed for wood window repair. It installs in the upper or lower corner of the window sash against the jamb, allowing a technician or installer to repair broken sash cords without removing the sash from the frame. The corner-mounted design simplifies the repair process and reduces labor time. Each package includes two springs. The spring-steel construction provides reliable tension to support sash operation and resist corrosion through the zinc plating.

This sash spring is suited for residential wood double-hung or single-hung windows where the original sash cord or balance has failed. The corner-mount configuration makes it a practical solution for in-place repairs on older wood window frames. It is commonly installed by general contractors, carpenters, glaziers, and experienced DIYers performing window maintenance or renovation work.

Key Features

• Corner-mounted design allows sash cord repair without removing the sash from the frame
• Zinc-plated steel construction for corrosion resistance and durability
• Installs in upper or lower corner of sash against the jamb
• Comes as a 2-pack for back-to-back repairs or dual-corner installation
• Spring-steel material maintains consistent tension over time

Compatibility

Designed as an OEM-style replacement sash spring for wood window frames requiring sash cord repair or balance restoration.

Installation Notes

Installation is typically performed by a carpenter, glazier, or window service technician. Before beginning, ensure the window sash is secured and will not drop unexpectedly during the repair process. Mount the spring in the upper or lower corner of the sash against the jamb as directed by the repair application. Follow all applicable building and safety guidelines for window hardware replacement.