Windows Hardware

A home owner from Sanjose CA 95124 says:
May 31, 2022
These four metal channel and springs were not working in opening and closing the window
This window is a doubled pan horizontal opening
The stamp on the metal channel is 27300 and 27308
The metal channels comes with four springs
Please identify me the correct part
The parts are already in the cart.....but I am not sure of their suitability
Appreciate your help in this regard
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Lauren from SWISCO responded:
June 3, 2022

Hello, thank you for posting! 

Your balances resemble the Series 350 channel balance. Can you please confirm the length of the balance excluding the nylon attachments? If possible, it would also be helpful to see pictures of the stamps on the metal channels. Thank you! 
28" Series 350 Channel Balance
28" Series 350 Channel Balance
S350-28
$10.97
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