Window Balance ID

A contractor from Indiana says:
Current balance measures Length: 34", Width: just under 1/2", and Depth 7/16"
Balance is ribbed and goes on a single hung tilt window. Windows have no names or markings.
I got a replacement from a local window company and it was too wide and too deep to fit into the channel. The measurement on the balance they gave me was 9/16" wide and 5/8" deep.

I realize that I need a thinner narrower balance, but it seems you do not have them in that length. Any information is greatly appreciated!

User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting, Josh. We can replace this balance for you, but it will need to be custom made. Can you tell me how many you need? That will be a huge help.
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