Simonton Single Hung Balances (2001)

A distributor from North Myrtle Beach says:
Looking for help on identifying what part to order to replace these balances. The windows are Simonton New Construction Single Hungs manufactured in 2001. Any help would be appreciated. They are all 3/0 x 5/0 (36" x 60").

Thanks!
Dave
User submitted image of their window hardware.
Profile picture of Paul
Paul from SWISCO responded:
Hello, Dave. What is the thickness of your springs? I think they might be 3/8". If so, see our 15-204 balance cover.
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