Replacement Sash Support Andersen Window Balances

A home owner from sellersville, pa says:
Attached please find photos of two window balances I am trying to identify so I can order replacements from you. I need to replace both balances. They come from a cottage window with the following visible glass sizes:
32.5"wide x 24"high and 32.5"wide x 36"high
visible markings are:
BR34 12#27 10-86
11600-17

Thanks in advance for your help!
Thumbnail of the uploaded file named 20201024_143613.jpg
Thumbnail of the uploaded file named 12#27
Thumbnail of the uploaded file named 20201024_150747.jpg
Thumbnail of the uploaded file named 20201024_151026.jpg
Thumbnail of the uploaded file named 20201024_151838.jpg
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Tom from SWISCO responded:

Hello! Based on your stamp of 12#27, I recommend the 24-1231 Andersen sash balance.

A home owner from sellersville, pa says:
Would both sashes take the same balance as the sashes are 2 different sizes for the cottage windows?
Profile picture of Tom
Tom from SWISCO responded:

If the sashes are two different sizes, then they probably have different balances. I will need to see the stamp printed on the other one in order to ID it.

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