50-9 Hemmed Channel Window Balance 61-5090

50-9 CMC Number stamped on your balance.
51 Inch Length of Metal Hemmed channel balance.
Sash weight 37 To 44 lbs.
1/2" Non-tilt window 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.