Nuair

Hello,

Thanks for reaching out! I believe the part you are referring to are the top sash guides installed to the top left and right corner of the sash. These are what help to prevent the channel balances from shooting up into the window frame as well as guide the balances in the channel when opening and closing the window.

To identify the right replacement, I'll need to see a photo of your existing top sash guides. I am confident we can supply you with a replacement but there are a few different options that populate for the brand you've provided.

Please let me know if you have any questions in the meantime.