Substitute for block and tackle balance.

A quick learner says:
May 17, 2017
I have a block and tackle balance like your S850-28.5 with a black 1-1/4" shoe.

I have a lot of windows in which to replace these. I am wondering if there is a different type balance that I can substitute. The price of replacing these in a double hung window is approaching the price of a new window. Do you have any suggestions?
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Paul from SWISCO responded:
May 23, 2017
We usually recommend sticking with what you have now, but if you wanted a new type of balance you may be able to get our S795-28 to work. I would also recommend the 28D option for sashes weighing 23 through 28 pounds. Check your sash weight just to be sure this is right. You would also need to change your pivot bar to our 26-021.
28" Series 795 Channel Balance
28" Series 795 Channel Balance
S795-28
$13.61
Pivot Bar, 2-1/2"
Pivot Bar, 2-1/2"
26-021
$1.97
1-1/4" T-Lock Balance Shoe, Closed Cam
1-1/4" T-Lock Balance Shoe, Closed Cam
15-195
$1.92
How to Install a T-Lock Shoe on a Channel Balance
How to Install a T-Lock Shoe on a Channel Balance
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How to Convert a Crossbow Balance to a Channel Balance
How to Convert a Crossbow Balance to a Channel Balance
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How to install the 26-200 Screw Plug
How to install the 26-200 Screw Plug
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How to Replace Damaged Pivot bars
How to Replace Damaged Pivot bars
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Removing Rusted Pivot Bars
Removing Rusted Pivot Bars
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Anatomy of a tilt window
Anatomy of a tilt window
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Modifying the Series 795 Balance
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Classifying Channel Balance Fittings
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