I need a replacement window channel balance. I think that's the name of the part. It is a 21" long metal channel with springs and line inside and plastic fittings on each end. One of the plastic things is broken. The # is 20 2 FN. Is this available, what is the price, and can I order one?
The part that I need most closely matches your 24" 800 Series that pops up when I searched your site for 20 2 FN but it doesn't quite match. This window was installed over 10 years ago, before I owned this house. The "shoe" and the top piece each have sortof a little "wing" on each side. Do you have this anymore?
Thanks. Marilyn
series 800 replacement party

Home Owner from Petaluma, California
Jan 14, 2013 7:57 pm
4 Replies

Tom from SWISCO
Jan 15, 2013 9:43 am


Thanks for posting, Marilyn. Actually, the stamp is not a serial number, but rather is only indicative of the balance's strength. I can't really identify what you have based only on that detail alone. Searching for the stamp on our site probably did not yield accurate results. I am not sure if you have the Series 800, but if you say that it doesn't look like your hardware then it is doubtful.
I recommend that you look at our Channel Balance Home Page and follow the steps in order to locate a replacement for your balance. Let me know what you come up with!
I recommend that you look at our Channel Balance Home Page and follow the steps in order to locate a replacement for your balance. Let me know what you come up with!

Home Owner from Petaluma, California
Jan 23, 2013 10:49 am
There is a stamp that reads - 20 2 FN Caldwell. If that's what you mean, which option do I need for the 21" 15-005 series 380?

Tom from SWISCO
Jan 23, 2013 10:50 am


Thanks for getting back to us. Usually, a stamp of 20 2 corresponds to our 2020 option. I also recommend that you double check your sash weight and see if it falls under the weight range shown for the 2020 option, just in case.
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