I would appreciate your help in identifying the channel balances we need for our single hung windows (only the bottom sash moves, correct?). I think they may have been manufactured by Champion Windows in Houston who I'm told is now out of business. The only identification that we can find on any of these windows is a sticker with Champion's name on it and "Product: Series 5700 Vinyl Single Hung". Also, "NFRC ADW-1-345 10-M". There is a number stamped on the channel "2730" that's shown in the attached photos.
Our house was built in 2010 and these are, I believe. the original windows. I would be glad to look for any additional information if that would be of help.
I was able to remove the window sash after watching your videos and measured the metal channel at 28" not including the plastic end pieces. I do have additional photos, but have reached the maximum allowed by your system. Also, I will need a couple of the plastic parts that attach to the sash itself as at least one of mine is broken.
Thanks for all of your help,Thanks for your time,Joe
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Tom from SWISCO responded:
December 18, 2020
Hello, Joe. Based on your photos, you have either our S351-28 or S390-28. The only difference between them is the size of the bottom fitting, which is indicated on their respective store pages. Yours looks like it might be over 1", but it's a little tough to tell from your photo. I would double check just in case. For the top sash guide, see our 18-171. 
Comparison of the S351 and S390 balance shoes.
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Tom from SWISCO responded:
December 18, 2020
They do wear down, as a matter of fact. If yours is over 1" but just shy of 1-3/32", then odds are the friction of day to day use probably wore it down just that much. |
![How to Replace a Top Sash Guide [1080p]](../../images/videoThumbnails/107.jpg)