Replacement window balancer
Hello, thank you for posting,
Your window uses 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!
The original spring should have a number stamped into the metal that indicates the weighted option needed. If there are no markings, please provide the weight of the window sash to move forward.
Also see the 15-186 balance clip and 15-182 balance bushing if needed. Let us know if you have any additional questions!
If there are no markings on the original coil spring, we will need to know the weight of the window sash. The sash will need to be removed and placed on a bathroom scale. Thank you!
Thank you,
For an 11 pound window sash, you can use (1) S190-640 coil spring on each side of the window sash. Please let us know if you have any additional questions!
