looking for window channel balances 19-d-40 size

I see you were looking at our S765-20. Is this what you have? If so, 19-d-40 is not a stamp that usually goes with this. If you are not sure what option to choose, you will need to weigh your sash on a scale and refer to the S765-20 store page.

If the S765-20 is not what you have, or if you aren't sure, we will need pictures of your balance to confirm a better match.