Peachtree balance identification

A home owner from Illinois says:
June 14, 2023
Hello and good afternoon. I opened up a few windows in our new house and when I tried to close them I broke a few of the balances. Neighbors say they were never opened before. The house is from 1991 and the windows are Peachtree. They are a weird 40/60 split so the bottom piece is bigger than the top. The sticker on the glass says ALI-CLASS A, TYPE AE, G3591. The back of the balance says 3072 1 GK CALDWELL. I don't see anything stamped on it. Any help at all would be greatly appreciated. Thanks in advance!
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Emily from SWISCO responded:
June 15, 2023

Hi there!

Thanks for reaching out to us. Given that this is a Peachtree brand window, our Series 745 may be what you want but I would need to see an undamaged balance removed from the window to confirm. You will also need to weigh the window sash on a scale to determine the proper spring strength option. 
A home owner from Yorkville IL says:
June 25, 2023
Good afternoon. I was finally able to take the pictures you asked for. Here is the undamaged side of the window balance. Also, I put the window on the scale and it read 20 LBS exactly. Thanks again for your help!
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Paul from SWISCO responded:
June 27, 2023

For a 20-pound sash, you would use the S745-32 with the 31.25-3 option for a sash weighing between 17-23 pounds.
32-1/4" Peachtree Balance
32-1/4" Peachtree Balance
S745-32
$19.54
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