Non-tilt window balance replacement

A handy person from Oviedo, Florida says:
The balance is 29" from metal tip to metal tip. It is stamped 28D. From other posts and the pictures on your website, I believe it is the Series 380, 29", 2840. Is this correct? Thank you so much, I have been putting off replacing three windows worth of balances for too long now.

A customer submitted photo of window balance attachments.
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Tom from SWISCO responded:
Thanks for posting!

To be certain as to what balance you will need, we will require you to identify the bottom attachment. Please refer to this guide and let us know which attachment is yours.
Diagram on how to choose between the 15-001, 15-002, 15-004, and 15-005 channel balance shoes.
Diagram on how to choose between the 15-001, 15-002, 15-004, and 15-005 channel balance shoes.
A handy person from Oviedo, Florida says:
The attachment has wings and is 0.91 inches. I assume that would be rounded to 1 inch. So 15-005 would be the attachment.
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Tom from SWISCO responded:
Thank you. Your guess was accurate; please take a look at our S380-29 with a 2840 stamp option.
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