I can't find any markings on the broken spring itself. I need two of them ... one for each side of the window. Should I weigh the window itself? I have replacement pivot shoes I bought from you a while ago. Thanks.
Spring identification

Quick Learner from Northern Virginia
Jun 5, 2024 10:22 pm
4 user uploaded images
3 Replies

Quick Learner from Northern Virginia
Jun 5, 2024 10:43 pm
The window sash is about 19-1/2" x 17"

Emily from SWISCO
Jun 7, 2024 12:38 pm


Hey there!
Your old pivot shoe is no longer available but you can use the 15-177. This is compatible with the S152 coil springs. If there isn't a stamp on the spring, you must weigh the window sash on a scale and divide the weight by the total number of springs in the window.
I'll be here if you have any other questions!
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