Harcar Window Channel Balance

A quick learner from Naples, FL says:
Greetings,

I have a Harcar window that needs new channel balances. It is marked only with "29C Z" on the sideplate of the old balance. I have seen this marked as FA-2930 on other websites, but would need to end pieces (plastic clips) to make it complete.

Would you need photos?
Thanks
Profile picture of Paul
Paul from SWISCO responded:
Yes, I would like to see photos. I am not able to identify what you have with this information alone. That said, most Harcar windows have been known to use our Series 380 channel balance. Could that be a match?
A quick learner from naples says:
Here are the photos that i took, four of them. i hope that they are sufficient.

Regards, Rhett
User submitted photo of their window balance.
Profile picture of Tom
Tom from SWISCO responded:
Yes, the Series 380 looks like a close match. Just confirm that the bottom shoe is the same size as the 15-005, which comes pre-attached to the Series 380 balance.
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