Balance for weathervane wood window

A contractor says:
April 18, 2016
Looks like there a 29in balance the number on it is a 2840 I need 2 to make sure there right and 16 total center hung window
User submitted photos of a window balance.
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Tom from SWISCO responded:
April 21, 2016
Hello! It appears that your balance is using attachments that match our 15-193 and 19-038. Can you confirm? We can custom make a 29" balance for you using these parts, all I will need to know is how many you need.
Bottom Fitting, Weathervane
Bottom Fitting, Weathervane
15-193
$3.20
Top Fitting, Weathervane
Top Fitting, Weathervane
19-038
$3.30
How to Replace a Channel Balance Attachment
How to Replace a Channel Balance Attachment
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