Prime Line Products B 521 Screen Door Tension Spring 2 Pack

Product Description

The PRIME LINE PRODUCTS B 521 is a replacement tension spring designed for plastic roller screen doors. These springs maintain proper door tension to keep the screen panel seated in the track and operating smoothly. Each package contains two springs at 1 inch in size, making this a convenient replacement quantity for a standard single-door service call. Installation is straightforward and suited to residential screen door repair work performed by window and door technicians or experienced DIYers.

This part is used in residential applications where plastic roller-style screen doors require tension spring replacement. Common scenarios include screen doors that have become loose in the track, fail to stay seated, or exhibit erratic movement due to worn or broken tension springs. The 1 inch size fits standard plastic roller screen door assemblies.

Key Features

• Plastic construction suited for roller-type screen door assemblies
• 1 inch size for standard roller screen door fitment
• Two springs included per package for a complete replacement set
• Lightweight at 0.35 pounds per package
• Carded packaging for easy retail or service truck storage

Compatibility

Designed as an OEM-style replacement tension spring for residential plastic roller screen door assemblies requiring a 1 inch tension spring.

Installation Notes

Screen door tension spring replacement is a common residential repair performed by window and door technicians or general contractors. Remove the screen door panel from the track before attempting spring replacement to avoid bending the frame or damaging the screen mesh. Verify the spring size matches the existing hardware before installation. No special tools are typically required, but work gloves are recommended when handling spring components.