Replacement sash balance

A home owner from Baltimore, MD says:
I need 2 replacement sash balances for an Andersen window. I don't see anything on your site that matches the numbers on my old one.

D67 7#27 3 78

Please advise me on a suitable replacement.

User submitted a photo of a window balance.
A home owner from Baltimore, MD says:
Also, just to let you know, the house (and window) is about 37 years old.
Profile picture of Paul
Paul from SWISCO responded:
Good morning! Based on your stamp of "7#27," we recommend our 24-737 Andersen sash balance.
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