replacment channel balance

A home owner from Loxahatchee says:
these shots are from a twenty year old Alcan window.
The balance is 30"x1/2"
the markings read 2920 B.S.I. HC
do you have a replacement that will work?
Thank You,
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
Hey, Robert, thanks for the great images. I recommend looking at our S380-30 channel balance with a 2920 option. Just make sure the nylon attachments match up in terms of size.
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