Extended-Travel Channel Balance Quote

Thanks for posting! The window balance you have does not appear to be an Extended-Travel Channel Balance. I believe your channel should measure exactly 27". If so, you'll need either the S380-27 or the S385-27 for the replacement. You'll need to measure the shoe's depth to confirm the correct series.

The 2630 stamp should work in place of what you have, but you'll need to double check that your sash weight falls between 13 to 19lbs.

Comparison of the S378, S380 and S385 balance shoes.