window sash balance rod weight 2965

A quick learner from Denver Co says:
April 23, 2020
I need to replace a balance rod, it looks to be your 390 series 30" the number stamped on the rod is 2964. Your options are 2960 or 2965 Should I get the 2965?
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Casey from SWISCO responded:
April 27, 2020

Hello,

We'd be happy to recommend a replacement balance for you but since your stamp seems to be unique, I'd like to see a picture of an undamaged balance removed from the window and the stamp itself to make sure you purchase the correct balance. Thank you!
30" Series 390 Channel Balance
30" Series 390 Channel Balance
S390-30
$11.30
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