Double Hung Wood Windows Spiral Balance

A landlord from Buffalo, NY says:

The windows (two) are from a 1870's house. Not sure if they are the original, probably not.

Window Size - 24"Hx27.75"W Bottom Sash

Weight - 8 lbs

Original Balance is 5/8 Dia (nominal). Length is 23.25, see photos.

The bottom of balance is different then what's shown on website. Hoping they can be adapted to my windows.

Thank you for the help.

John

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Tom from SWISCO responded:

Thanks for reaching out to us. For old wood windows like these, we usually recommend our Series 500 spiral balance, along with the 17-012 bottom bracket (sold separately). This has the same diameter as your original, and as for the length you can just round to the nearest inch. In your case, 23". Look it over and see what you think!

A landlord from Buffalo, NY says:
Tom, thank you for your help. Just ordered the balances and accessories. Your website is outstanding to include a help dialog. The video's provided the information to make an informed decision. The vintage window will now remain in use rather then be landfilled.
John
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Tom from SWISCO responded:

That's great! Thank you so much for your business, it means a lot. If you ever needed anything else, you know where to find us.

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