Need replacement tilt window channel balance

A quick learner from Escondido Ca says:
June 4, 2020
I have upper and lower window channel balances for unknown manufacture I need to replace. They are for tilt windows, measure 28 3/16 long, 9/16 wide with 26rb B.S.I stamped on them.
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Tom from SWISCO responded:
June 9, 2020

It's tough to tell from this photo, but this looks like it could be a match for our Series 751 channel balance. Look this over and let me know what you think.
A quick learner from Escondido Ca says:
June 9, 2020
That looks very much like it but the optional BALANCE KNIFE LOCK SHOE
Product Code: 15-014
is the shoe it uses on these, do you have the assemble with that shoe.
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Tom from SWISCO responded:
June 10, 2020

I'm not sure that I understand. The 15-014 is precisely the shoe that the Series 751 uses. Can you elaborate?
A quick learner from Escondido Ca says:
June 11, 2020
Oh OK perfect that's what I needed to know. I'll go ahead and order a couple to make sure they are correct and place a bigger order if they are. Thank you for your help.
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Tom from SWISCO responded:
June 11, 2020

Great, thank you! Please let me know if we can be of any help in the future.
Balance knife lock Shoe
Balance knife lock Shoe
15-014
$1.09
How to install a ribbed tilt channel balance with knife lock shoe
How to install a ribbed tilt channel balance with knife lock shoe
VIDEO
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Classifying Channel Balance Fittings
Classifying Channel Balance Fittings
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