2940 Number on Balance 23-28 lbs Sash Wt. 60-294

2940 BSI Window Channel Balance. 30" window balance length. 23-28 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.