Channel Balance Replacement

A home owner from Home says:
The stamp on balance of my non-tilt viking vinyl windows
single hung dual pane windows reads 2690 35
what do I need?
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Tom from SWISCO responded:
I'm not sure, I'm afraid we do not have an option that corresponds to 2690. I see you were looking at our S380-35. Is that the balance you think you have? If so, you may want to double check the length of the metal channel. With a stamp like 2690, it should be 27" long, not 35".

As for the option, it's easy enough to figure out. All you have to do is weigh the sash on a scale and compare that weight to the option chart we have listed under every balance in this Series.
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