28 3 DN CALDWELL channel balance replacement

Handy Person from Florida
I need to replace the channel balances on a pair of windows but need help identifying the replacement part. Balance has 28 3 DN CALDWELL printed on the back and the channel is 29 inches long. Can you help?
4 Replies
Tom
Tom from SWISCO
SWISCO
Expert
You have a 2830 balance. Can you please submit photos of the balance attachments? We will need this information to determine the balance series.
Handy Person from Florida
Attached find photos of the shoe attachments as requested in your discussion forum.
User photo of their channel balance attachments.
Tom
Tom from SWISCO
SWISCO
Expert
It appears you have the S390-29 with a stamp option of 2830.
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