What is replacement for this sash balance

A home owner from ohio says:
July 2, 2015
The number I pulled from the old sash balance is
G312 31 174

Whats the replacement for this one?

Thanks
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Paul from SWISCO responded:
July 6, 2015
Hello! Based on your stamp, I recommend our 24-1231 Andersen sash balance. This can replace balance boxes marked with "12 31."
Andersen Sash Balance, 1226, 1227, 1231
Andersen Sash Balance, 1226, 1227, 1231
24-1231
$54.20
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