2830 Number on Balance 16-23 lbs Sash Wt. Part Number 60-283

2830 Number on Window Balance. 29" Metal Channel Length. 16-23 lbs Sash Weight. 1/2" x 1/2" Non-tilt window channel balance.
***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.