11600-17 BC4 6#23 1-87 sash balances

A quick learner from NY says:
September 17, 2020
we need sash balancers for replacing 11600-17 BC4 6#23 1-87 Thank you
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Bob from SWISCO responded:
September 22, 2020

See our 24-637. This is meant to replace Andersen balances that include the stamp code 6#23.
Andersen Sash Balance, 623, 627, 631, 637
Andersen Sash Balance, 623, 627, 631, 637
24-637
$54.20
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