Trying to replace window sash partrs

Thanks for posting. Before I can confirm what Series channel balance you have, I'll have to figure out what your bottom shoe is. Please look at the measurements for our 15-001 and 15-002 bottom shoes and note their depths. As you can see, they are 1-1/8" deep and 1" deep, respectively. Which measurement more closely resembles your own shoe?

As for the top sash guide, how about our 18-061? Carefully compare it to your own hardware and let me know what you think.

I think the top attachment is our 19-002. Those are pretty easy to identify and serve a very simple function. The bottom shoes are a little harder to identify though.

Looks like the larger 15-001. In that case, check out our Series 390 channel balance.