need sash balance

Question

Hello,
I need to get 10 sets total of these sash balances. 8 sets will be for 15 lb windows (2 springs per set/ per window) and 2 sets will be for 19 lb windows. please advise on parts needed.
Thank you,
Victor

Lauren · Accepted Answer

Hello, thank you for posting,

Your window uses the 15-180 pivot shoe that is compatible with the Series 190 coil springs. Compare the dimensions below to confirm a good fit!

Alternate image for 15-180

Also see the 15-186 balance clip and the 15-182 balance bushing.

For a 15 pound window, you can either use (1) S190-840 coil spring per side to get to 16 pounds of support. Or you can use (1) S190-740 coil spring per side to get to 14 pounds of support.

For a 19 pound window, you can use (1) S190-940 coil spring per side which will give 18 pounds of support.

As long as the total weight is within a pound difference, the coils will support the window sash. Please review and let us know if you have any additional questions!