Window balance

A quick learner from California says:
October 19, 2022
I don't know what one to order it's 1/2 inch wide 25 in long I just do t know the weight
Can you tell me what one to order stamped on the side is

25 4 AW CMC 4
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Tom from SWISCO responded:
October 25, 2022

Hello! Your stamp indicates a 26" long channel balance with a 2540 option. 

I see you were looking at our Series 350. Note that this has a 19-002 top and 15-004 bottom. It's important to ensure that these match up, as there are other possibilities with very subtle differences.
25" Series 350 Channel Balance
25" Series 350 Channel Balance
S350-25
$10.77
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