metal " measures 25 inches

A contractor from Arleta Ca says:
please help me find the correct one to order
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Lauren from SWISCO responded:

Hello, thank you for posting,

Your balance resembles the S350-25 channel balance. The 2414 stamp does not directly translate to our spring strength option. To further review, are you able to provide the weight of the window sash? The sash will need to be removed and placed on a bathroom scale. Thank you! 

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