window balance ID

A quick learner from port charlotte says:
December 21, 2023
I need some help identifying my window balance. It appears to match the S395 series, can you confirm? Also, the stamp shows 36 4 bx cmc 11. Would this indicate a 3640 sash weight?
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Bob from SWISCO responded:
December 23, 2023

Thanks for posting. You're 100% correct. This is an S395-37, and for the stamp option you'll choose 3640. Let us know if you have any other questions, and Merry Christmas. 
37" Series 395 Channel Balance
37" Series 395 Channel Balance
S395-37
$13.34
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