Series 145 Coil Balance

The Series 145 Coil Spring Balance measures 1/2" wide and 38-1/2" long. This coil is for side-load sash balance systems used in non-tilt windows. Coil spring balances are also known as constant force balances.
Before you pick one of the options below, please refer to the stamp or imprint on your original spring. That should tell you what you need. If you're still not sure, or if you have no stamp, you can ask our experts for help here.
Series 145 Coil Balance
Choose a balance below
2 lb 3 lb 4 lb 5 lb 6 lb
7 lb