Replacement Spring Balances for vinyl double hung tilt windows

A home owner from Fond du Lac, WI says:
I would like to replace the spring balances on some double hung vinyl tilt windows in a mobile home that is about 20 years old. The upper ones are working fine but the lowers new replacing.
The channel is 3/4" wide and the window heights are either 15" or 29".
Do you have anything that will work?
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Casey from SWISCO responded:

Hello,

The old-style crossbow balances in your photos are no longer available but many customers have been able to use our S795 channel balance to replace them. Take a look at our video below to view the full conversion process. Thanks for posting! 

How to Convert a Crossbow Balance to a Channel Balance
How to Convert a Crossbow Balance to a Channel Balance
VIDEO
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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
VIDEO
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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 install the 26-200 Screw Plug
How to install the 26-200 Screw Plug
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Modifying the Series 795 Balance
Modifying the Series 795 Balance
GUIDE
READ >
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