Identify needed window balance

A home owner from Payson, Arizona says:
Channel measures 25".
4 photos attached.
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Thumbnail of the uploaded file named 20230906_142527.jpg
Thumbnail of the uploaded file named 20230906_142541.jpg
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Emily from SWISCO responded:

Hello!

Our Series 351 or Series 390 are my recommendations. The important difference between them is the depth of the bottom shoe as shown below. We also recommend the 2440 option for your replacements. 

However, the broken part in your first part is too damaged to ID. We'll need to see photos of an undamaged version in order to help.

Comparison of the S351 and S390 balance shoes.
Comparison of the S351 and S390 balance shoes.

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