27" balance

Thanks for posting! Your channel balance reminds me of the S380-27 or the S385-27. You'll need to confirm the depth measurement of your shoe to determine which of them is the right replacement for your window. Please let me know if the measurement differs from those shown on the diagrams below.

You can select the 2630 stamp option.

Comparison of the S378, S380 and S385 balance shoes.