Window track balance replacement

A quick learner from California says:
Trying to find the right track balance to replace the broken part, window was difficult to open, the string and clasp were wore out.
Appreciate your help!
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Emily from SWISCO responded:

Hello there!

It looks like you need either the S380-34 or S385-34. The best match will come down to the depth of the bottom fitting as shown below. I also recommend the 3330 strength option.

Comparison of the S380 and S385 balance shoes.
Comparison of the S380 and S385 balance shoes.

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