Sash balancer replacement

A quick learner from Philadelphia, pa says:
Would you help me find a replacement for the spring balancer in my photo.

Also, you sell the vinyl cover that covers this? I broke it.
Thumbnail of the uploaded file named 827
Thumbnail of the uploaded file named image.jpg
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Tom from SWISCO responded:

I recommend the 24-837 . This can replace Andersen sash balances stamped with "827," like your original. 

How to replace an Andersen Window Balance
How to replace an Andersen Window Balance
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