Caldwell channel balance

A home owner from San Antonio, Texas says:
March 2, 2015
My guess is the balance I need is a S390-34 option 3320 but wanted to check before ordering. The metal portion is 34" long and is marked 33 2 DL CALDWELL.

Thanks for your help.

Jim K.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
March 5, 2015
I agree, the S390-34 looks like a great match. Just confirm that the nylon attachments are the same, and that the weight of your sash is covered by the 3320 option.
34" Series 390 Channel Balance
34" Series 390 Channel Balance
S390-34
$11.73
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