broken sash balancers

A home owner from Bethlehem Pa says:
do you have a replacement for these?
double hung - each window is 24 x 30 inches.
User submitted a photo of a window balance.
E19 9#27 3 65
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting, Tim. Check out our 24-939. This can be used to replace balance boxes with the stamp 9#27.
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