Window Sash Part Number Unknown Match

A quick learner from Citrus Springs Florida says:
Wasn't sure of the pictured matches. Nonetheless, this is what I need, four of each, eight total. Four 29" and Four 24"(pic in window frame). Please let me know if you need more pictures. Thank you, Dave
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Casey from SWISCO responded:

Hello,

Take a look and compare the specifications of the S395 channel balance to your assembly. You would need a 2340 strength option for the 24" long S395-24 replacement balances.

I would recommend double-checking the length of your long balance since the 29 4 stamp shown in your photo would normally indicate that the balance channel would measure 30" long, not including the end attachments. If that is the case, see the S395-30 with a 2940 strength option. Thank you! 

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