Constant Force Sash Balance

A contractor from Alpharetta, GA says:
I can't seem to locate this sash balance. Any ides?

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Casey from SWISCO responded:


We don't carry this exact assembly but you may be able to use our 15-251 single support as a replacement. if you also need new springs, see our S160 . You will likely need to replace both sides in the same window for these to function properly. Thank you!

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