Weathershield Windows Channel Balances

A quick learner from Ambler, PA says:
June 5, 2019
I need to replace both channel balances in a Weathershield (I believe Proshield series) double hung tilt window. The window was installed in 2000. Photos attached. Channel marking is 32TG (BSI), see photos. Also see photo of locking mechanism at bottom of cable. Best I can determine the Weathershield part number is 980853 (see photo of parts listing for a more recent series). Do you have a suitable replacement part?
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Bob from SWISCO responded:
June 6, 2019

Thanks for posting. See our S755-33. Be sure to remove your balance from the window and compare all the specifications, especially the bottom shoe, to ensure it matches our recommendation. If anything differs, let us know. You'll need a stamp option of 32TG. 
A quick learner from Ambler, PA says:
June 9, 2019
Do you mean part number 751-33 ? I don't see a 755-33 listed on your web page.
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Bob from SWISCO responded:
June 10, 2019

Yes, I do mean S751-33. My apologies. Sometimes my fingers have a mind of their own. Look the part over and let us know what you think. 
33" Series 751 Channel Balance
33" Series 751 Channel Balance
S751-33
$12.27
How to install a ribbed tilt channel balance with knife lock shoe
How to install a ribbed tilt channel balance with knife lock shoe
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