Help in identifying channel balance

A quick learner from Tampa, Florida says:
Looking to identify and then purchase new channel balances for windows in my home. I only found one marking on one of the broken ones: 223OZ. These are kind of old, probably 20+ years.
Attached are some photos to help. It is 23 inches long (1 ft, 11'')
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting. Before I can confirm what Series channel balance you have, I'll have to figure out what your bottom shoe is. Please look at the measurements for our 15-001 and 15-002 bottom shoes and note their depths. As you can see, they are 1-1/8" deep and 1" deep, respectively. Which measurement more closely resembles your own shoe?
A quick learner from Tampa, Florida says:
I measured it at 1-1/8". So I think I need 15-001, right?

Profile picture of Donna
Donna from SWISCO responded:
Hi Andrew, I agree that 15-001 is the proper balance fitting for you. Choose Series 390 for your replacement balance series, for 23" go to SWISCO product code S390-23 and select a stamp number that matches up to the markings found on your sample.
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