What do I need to replace 28C (marked)

A quick learner from St. Johns, FL says:
May 29, 2020
Hello, need few replacements for channel balance the long is 29" (metal part) and wide is 0.50". I don't know what to get, please advise. I also need a cap to close the channel balance. Should I replace both of them?

Thank you John
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Tom from SWISCO responded:
June 2, 2020

Hi, John. This looks like an older design of our S380-29. Look this product over and let me know if you agree.

We do recommend replacing both balances at the same time, yes.
A quick learner from St. Johns, FL says:
June 2, 2020
I needs the cap for the channels, please take look at the attached thx
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Tom from SWISCO responded:
June 3, 2020

Sure thing. This part is called a top sash guide; yours in particular looks like a good match for our 18-180. Look it over and let me know what you think.
1/2" Top Sash Guide
1/2" Top Sash Guide
18-180
$1.67
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