29" replacement channel balance

A handy person from Florida says:
need 4 replacment window balance 29" long
Top catch is 1/2" wide x 5/8"deep.Wings are 1" wide
Bottom shoe is 1/2" wide x 15/16 deep. Wings are 1" wide
Channel is 9/16" x 29"
I think it is a S380-29
A customer submitted photo of channel balance attachments.
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Paul from SWISCO responded:
Thanks for posting. based on your description and pictures, it does, indeed, sound like you have an S380-29. However, can we see the number printed on your balance? This well help us determine the correct stamp number.
A handy person from florida says:
Paul
only # on balance is 28B USB
Profile picture of Paul
Paul from SWISCO responded:
Thank you. In that case, you would need the 28" Series 380 with stamp option 2820.
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