The metal part is 24inch long, without including the plastic part on the ends.

A quick learner from Miami says:
November 8, 2017
For a window, that want to replace the channel balance.The metal part is 24inch long, without including the End plastics.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
November 14, 2017
It looks like whoever replaced this balance before didn't have the correct bottom balance shoe. They used a top balance fitting, instead.

I believe what you actually need for your Jones window is a custom made 24" long channel balance with a 19-039 top and 15-004 bottom. Does that look good to you? If so, please let me know how many you need and we can get started.
Winged Channel Balance Shoe, 1-3/32" Depth
Winged Channel Balance Shoe, 1-3/32" Depth
15-004
$0.74
Top Balance Attachment, Jones
Top Balance Attachment, Jones
19-039
$1.54
How to Replace a Channel Balance Attachment
How to Replace a Channel Balance Attachment
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Classifying Channel Balance Fittings
Classifying Channel Balance Fittings
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