Extended-Travel Channel Balance Quote

Thanks for reaching out to us. I'm not sure what you have, unfortunately. There are dozens of different extended travel balances with that stamp. It's not a product code or anything, it just indicates the strength of the spring.

In order to figure out what specific configuration this is, I need you to remove an undamaged version of this balance from the window and show me clear pictures of the top and bottom nylon fittings, as well as the hook at the end of the cord. 

Please make sure that the balance in question is in undamaged condition. That will ensure that no important components are missing.

Lastly, please verify how many you needed altogether.