thermal industries series 5000 double hung window

A quick learner says:
August 24, 2023
I need constant force balancers for one window. 4 pcs
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Emily from SWISCO responded:
August 24, 2023

Thanks for reaching out to us! I'm afraid I can't identify what you may need from this description. Can you show me a photo of the pivot shoe removed from the window? I can narrow down some options from there.
A quick learner says:
August 29, 2023
Thumbnail of the uploaded file named Constant Force Balancers.PNG
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Emily from SWISCO responded:
August 29, 2023

Thank you for the photos. This reminds me of the 15-251 single support. The 1/2" Series 160 are the compatible coil springs. Take a look at the specifications and see what you think. 
Inverted Universal Single Support
Inverted Universal Single Support
15-251
$3.97
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