Need new window balance

A handy person from Fort Worth, Texas says:
Metal is 22 inches long, 9/16 wide
Stamped 2120. Window weighs 9.5 lbs.
All other hardware is ok.
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Bob from SWISCO responded:

I believe this might be our S395-22 Channel Balance, with a stamp option of 2120. Please review and see if you agree. 

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