Which Anderson Windows Sash balance

A quick learner from Berlin, NJ says:
Hall Bath: Double Hung Pane 32 1/4 X 16
Master Bath: Double Hung Pane 24 1/4 X 20

Please tell me what sash balances that I should order to repair these two windows.
The stampings on the ledges of the parts are shown in photo. There is an additional stamping that says 11600-17.
These windows were installed in 1990.
Thank you for your help. Sorry that your parts counter in Camden closed.
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting, Gerald. Thank you for your well wishes.

For the master bath, I think that stamp might read 8 23 instead of B 23. If you agree, I recommend our 24-837, which can replace boxes stamped with the number 8 23.

For the hall bath, check out our 24-737, which can replace Andersen balance boxes with the stamp, 7 25.
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