Tom from SWISCO responded:
July 8, 2014
Thanks for posting, Dan. I recommend our 24-1231. This can replace Andersen sash balances stamped with 1231.
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Casey from SWISCO responded:
July 9, 2014
If you believe your original balance was erroneously stamped and that 13-31 is the appropriate number, then see our 24-1331 instead. You may want to contact the original installers and ask why they decided to place that sticker on the balance, though, just in case.
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