28" block and tackle for milestone windows

A home owner from Florida says:
February 8, 2019
I have a Milestone non-tilt window that needs a new block&tackle balance. It measures 28"long, 9/16"wide at open channel side, 1/2"wide at back of channel, and depth of channel is 1/2". It has a 27C stamp as shown in the attached picture and the end connection as shown in the attached picture. I had tried one kind already, but it measured 9/16" in channel depth, and that did not fit because that extra 1/16" did not allow for a plastic cover that fits over the channel to blend in with the window. So I want to make sure I order the right part. Suggestions?
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Bob from SWISCO responded:
February 8, 2019

Thanks for posting. I think we can help you replace this balance, but I will need more information. First, could you show us a picture of the entire balance? And can you confirm the length of the metal channel, not including any end attachments? Thanks.
A home owner from Florida says:
February 10, 2019
Here are some more pictures. The metal channel is 28" NOT including any attachments
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Bob from SWISCO responded:
February 12, 2019

Ah, thank you. Your exact balance isn't made anymore, but you should be able to use our S770-28 as a replacement. I don't think there are any major design differences between your older balance and ours. Look it over and see what you think!
A home owner from Florida says:
February 12, 2019
Perfect. Thank you.
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Bob from SWISCO responded:
February 12, 2019

You're very welcome. Let us know if there's anything else we can help with!
28" Series 770 Balance
28" Series 770 Balance
S770-28
$12.70
How to replace a tilt-window channel balance.
How to replace a tilt-window channel balance.
VIDEO
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