Need part identified

Hello there. Could you specify what part you are talking about? Could you send photos of the hardware in question? We'll do our best to help from there 

That is not the correct one, unfortunately. What you have here is what's called an extended-travel channel balance, named for its unique block and tackle configuration. We can supply these, but only as a custom order. These aren't available as stock items.

We'll need more data from you before we can proceed. To start, please tell me the exact weight of the sash that these balances support, down to the ounce. I'll also need you to tell me how many you wanted to buy in total. If you're looking to buy different lengths and stamps, we need to address each one on a case-by-case basis.

These balances have a very particular design and we need to follow strict protocol to get you what you need. Otherwise, these are fairly routine despite their particularities and I'm very confident our repair parts will work for you.