2330 Number on Balance 15-18 lbs Sash Wt. 60-233

2330 Number on Window Balance. 24" Metal channel lenth. Sash Weight: 15 to 18 lbs.
1/2" x 1/2" non tilt window channel balance spring.
***Note: Top and bottom balance ends must be ordered separately. We strongly suggest replacing the sash guides on the side of your window as well.