Anderson string balance

A quick learner says:
December 9, 2020
The numbers found on one side in bottom right corner is C19 6423 685. Opposite top right is 11600-17.
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Tom from SWISCO responded:
December 11, 2020

Hello! Based on your stamp of 6#23, I recommend the 24-637 Andersen sash balance. I believe this will work for you as a replacement.
A quick learner says:
December 11, 2020
Hi Tom,

Thank you! Sorry, I didn't realize that was a # sign!
I will place an order....appreciate your help:)
Andersen Sash Balance, 623, 627, 631, 637
Andersen Sash Balance, 623, 627, 631, 637
24-637
$54.20
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