Need to replace coil spring

A quick learner from NY says:
April 6, 2021
Need to replace the coil spring on my window. The cam is Tee shaped, which I am finding hard to find.
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Casey from SWISCO responded:
April 9, 2021

Hello,

Take a look and see how your original coil balance hardware compares to our 15-087 housing and Series 180 coil springs. Thanks for posting! 
Coil Housing Pivot
Coil Housing Pivot
15-087
$5.97
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