Broken coil balances

Hello, thank you for posting,

Your coil assembly resembles an older version of the 15-180 pivot shoe that is compatible with the Series 190 coil springs. Please review the dimensions below to confirm a good fit! 

Alternate image for 15-180

The original coil should have a number stamped on the metal that indicates the weight option needed to support the window sash. If there are no markings, please provide the weight of the window sash to move forward.

If the original shoe is still in good shape, the new coil springs should be compatible. 

Also see the 15-186 balance clip and 15-182 balance bushing if needed. Let us know if you have any additional questions!  

No problem! 

Thank you for the additional information,

For the 16 pound sashes, you can use (1) S190-840 coil spring on each side of the window. 

For the 21 pound and 23 pound sash, since its uneven, it is up to you which combination you want to use. As long as the weight is within a pound the coils should support the sash. 

You could double up (1) S190-540 and (1) S190-640 on both sides of the window to get to 22 pounds. This should be sufficient for both weights. But if you rather go a pound higher or lower take a look at weighted coils here. 

For a single coil setup, you would use the 15-182 balance drum and 15-186 balance clip. For double, use the 15-182 per coil along with the 15-181 double support clip.

Please review and let me know if you have any additional questions!