25-1/2" 25 9 Sash Window Balance

This sounds like a custom balance that has been going extinct. Can you gather some information?

First, is the channel exactly 25-1/2" long when you measure just the metal? Could it possibly measure 25-5/8"? Or something else? Double check.

"25 9" is an extinct weight code. It doesn't mean anything anymore. To get around that lost information, you need to weigh your window sash and counter-balance the proper weight. Can you provide that weight?

Finally, can you send a photo of each attachment, top and bottom? When you see strange lengths like this, you often also see strange attachments. I want to make sure everything is exactly right.

Perfect, thank you! This is just what we needed to see. I suspected you might have this balance. It will definitely have to be custom made, but it shouldn't be a big deal. Can you just show me the metal hook that was at the end of the cord? That's a small but important detail. Can you also confirm how many you need?

Finally, one last note; when it comes to sash weights, you don't want to divide it up between your balances when you have this style. You'll want two balances that can support 32 pounds. We'll take care of that, though, we just need to see that metal hook and we will need your quantity.