need help

Thanks for reaching out to us! We believe you have an old, discontinued Daryl window. Your top fitting is the 19-025, which isn't used with any of our stock balances, so this must be a custom order. Can you measure the bottom shoe as shown below and tell us what you get? We will also need you to confirm the length of the metal channel and the stamp printed on the back of it. 

Comparison of the S351 and S390 balance shoes.