channel balances for my non-tilt window

Looks like you only submitted a picture of the bottom piece, which looks like it could be either our 15-004 or 15-005, depending on its depth. You'll need to measure yours to confirm. When you measure, make sure to account for wear; that is, remember that your depth might be a little less than it once may have been.

I cannot confirm what the top piece is as you did not include a picture of it. Odds are it's either the 19-002 or 19-005, but that's just a guess. You can see our entire selection of 1/2" wide non tilt window channel balances here.

Thanks for getting back to us! I don't think this is our Series 350 balance. Your top attachment is very different. See our Series 377 instead, I think you'll find this is a closer match. Specifically, I'd recommend our S377-25 with a 2420 stamp option.