Need help to identify hardware for two different windows

A home owner from says:
August 9, 2023
I have two windows that I need replacement hardware.
#1 Stamp 2820
#2 Stamp 28 B BSI LJ - Tilt-out window

I will attach pictures
Thumbnail of the uploaded file named Window type #1 -2.JPG
Thumbnail of the uploaded file named Window type #2 - 1.JPG
Thumbnail of the uploaded file named Window type #2 -2.JPG
Thumbnail of the uploaded file named Window type #1 - 3.JPG
Thumbnail of the uploaded file named Window type #1 -1.JPG
Profile picture of Bob
Bob from SWISCO responded:
August 9, 2023

Thanks for writing in. The tilt window channel balance appears to be an S775-28. For a stamp option, choose 28B; for the shoe size, it appears your balance's wedge shoe is 1-1/4" wide, but pictures of measuring tape can be deceiving, so please double-check to be certain. 

For the non-tilt channel balance, I need a clearer picture of the top nylon fitting. Can you send a good picture or two of that top attachment? I'll do my best to fully ID this balance from there. Many thanks. 
A home owner says:
August 10, 2023
I uploaded additional pictures
Thumbnail of the uploaded file named Window type #1 -4 - lenght.JPG
Thumbnail of the uploaded file named Window type #1 - 5.JPG
Thumbnail of the uploaded file named Window type #1 - 6.JPG
Thumbnail of the uploaded file named Window type #1 - 7.JPG
Thumbnail of the uploaded file named Window type #1 - 8.JPG
Profile picture of Bob
Bob from SWISCO responded:
August 10, 2023

Perfect, thanks. This non-tilt window channel balance looks like either our S351-29 or S390-29. The only difference between these two channel balances is the depth of the bottom nylon shoe, or the 'heel-to-toe' measurement. Compare the diagram below with your old hardware to see which matches best. For a stamp option, choose 2820.

Comparison of the S351 and S390 balance shoes.
Comparison of the S351 and S390 balance shoes.
28" Series 775 Balance
28" Series 775 Balance
S775-28
$21.91
29" Series 390 Channel Balance
29" Series 390 Channel Balance
S390-29
$11.10
29" Series 351 Channel Balance
29" Series 351 Channel Balance
S351-29
$11.10
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