Window channel balance

Question

Have a broken balance channel. Window sash weights 24 pounds. Original channel markings are29-4 AA CMC 11 . This is a 30 in channel. I'm thinking that the replacement is the 385 series, 2940, 30 inch. Can you confirm or recommend the correct replacement?

Tom · Accepted Answer

I'm afraid I can't confirm if the Series 385 is a match. The stamp only indicates the strength of the spring. The best way to confirm if the Series 385 is what you have is to go over the pictures and dimensions for the two nylon attachments that come with it: the 19-005 and 15-004. If they match up to your own nylon attachments, then I think you'll be good to go.