2830 window balance from the late 70's

A quick learner from Centennial, CO says:
May 22, 2023
I can't find a window balance that has a flat top and a bottom without wings. This is an older window so I'm hoping I can find the right window balance.
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Tom from SWISCO responded:
May 23, 2023

Hello! Your balance looks like a good match for our S370-29. I think this may be what you need, but look it over and see what you think.

Close up view of the S370 balance top.
Close up view of the S370 balance top.

Close up view of the S370 balance shoe.
Close up view of the S370 balance shoe.
29" Series 370 Channel Balance
29" Series 370 Channel Balance
S370-29
$11.27
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