Window springs

A handy person from Royal palm beach says:
Hello, I'm looking to identify these window counterbalance return Springs so that I can order replacement parts from you. It is a 30 inch piece with the markings 29 3 AX CMC 11 on the side
. Thanks
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A handy person from Royal palm beach says:

I am also looking for help identifying these counter balance springs, so that I can order a replacement from you. The units are 30 inches long with the engraving 29 5 on the side. Thank you

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Jasmine from SWISCO responded:

Hey there,

Thanks for writing in! Both of the balance assemblies you are searching for appear to be the Series 395 Channel Balance with a winged top guide and wingless bottom shoe. Since both of them have a 30" metal channel, you'll need the S395-30.

For the balance marked with the 29 3, you'll need to select the 2930 stamp option and for the balance marked with a 29 5, you'll need the 2950 stamp.

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