Aside Windows
Hello, thank you for posting,
To further review, we will need to see the window sash removed where we can see a clear view of the pivot shoe. From there we can determine the series of coil springs needed for your window. Thank you!
Thank you for the additional picture,
Your original shoe has been discontinued, but we recommend the 15-177 as a replacement option. Please review the dimensions below to confirm a good fit!
The new shoe will be compatible with your original coils, but if new ones are needed, see the Series 152 coils. The original coil should have a number stamped on it to match up the weighted option needed.
Also see the 15-143 bushing. 15-144 bushing cap and 15-145 support barrel if a new cover is needed. Let us know if you have any questions!