Replacement Sash Support Andersen Window Balances

A from Eastham, Ma. says:
November 22, 2020
11600-17 is the only number on the balance. Picture above. The each window surface, upper or lower, area is 24"wide by 20" tall
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Casey from SWISCO responded:
November 25, 2020

Hello,

I believe I see numbers stamped on the tab at the end of your box balance. Could you wither write those out or show us a clear photo of them and any other numbers on the front or back of the balance box? Thank you!
A quick learner says:
November 25, 2020
623
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Casey from SWISCO responded:
November 25, 2020

Great, in that case, take a look at our 26-637 Andersen sash balance that will replace the (623) stamp on your original hardware. Thanks for posting!
Andersen Sash Balance, 623, 627, 631, 637
Andersen Sash Balance, 623, 627, 631, 637
24-637
$54.20
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