Andersen balance identification

A home owner from USA says:
I have an Andersen window and the sash balance needs to be replaced. I need to identify the parts I need. The marking on the window and the size is as shown below Can one tell the part needed from below or do I need to remove the existing balances as shown in the video.

2 80/1 �
xi �
Grill size 32 5/8" X 24 5/8"
3046 is code for my size
32 1/4" WIDE BUY 23 5/16" HIGH
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Paul from SWISCO responded:
I can make a guess based on the size of the visible glass, but this is not as reliable as knowing what is printed on the balance itself. See our 24-939, this may be what you have. Again, though, I cannot guarantee it.
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