top sash balance guide -need help

Contractor from cape coral, fl
I have already determined that the balancers are:





29" Series 385 Channel Balance
S385-29
Option: 2820





However, I cannot determine which part number this is. It screws into the top of the window sash. They are brittle, and that's why the top portion is missing. 
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2 Replies
Bob
Bob from SWISCO
SWISCO
Expert

Thanks for posting. See our 18-178 Top Sash Guide pair. This looks like it might be what you have, but please compare and let us know what you think.

Alternate image for 18-178
Alternate image for 18-178
Alternate view of 18-178
Alternate view of 18-178

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