Replacement 29" channel balance 28 4 IU CMC 7

Question

Markings on the balance are as follows: 28 4 IU CMC 7. 29 inches total metal length. rolled edge. from a NuAir single hung window

A customer submitted photo of channel balance attachments.

Tom · Accepted Answer

Thank you for posting, and for the pictures! I believe you have an S385-29, but before I can say it definitely I would like you to take a look at the graphic below. Confirm your balance has the 15-004 attachment (which looks very similar to the 15-005 attachment).

Diagram on how to choose between the 15-001, 15-002, 15-004, 15-005, and 15-029 channel balance shoes.