26" Caldwell Window Channel Balance

A handy person from Mission Viejo, CA 92692 says:
Hello: I have a slide up (not tilt) window that needs to have both side channel balance bars replaced. Here is the number written on the hardware - 26-4-K0 (IMG_1564). I can't seem to find this particular part in your files. Can you help me? Thanks, Sherry
User submitted photos of a window balance.
Profile picture of Mike
Mike from SWISCO responded:
Hello Sherry! From the photos you have shared with us, it looks like you can use the Series 385-27" side load balance with a spring weight option (2640). Let us know how that works for you
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