Channel Balance

Thanks for writing in! The channel balance you have is either the S380-34 with a 1" shoe or the S385-34 with a 1-3/32" shoe. To determine which series is needed for your window, look over the dimensions from the diagram below to confirm the depth of your bottom shoe. Let me know if it does not match either measurement.

Comparison of the S380 and S385 balance shoes.

Your 33 9 stamp cannot be cross-refenced, unfortunately. With that said, to select your stamp, you will need to obtain the exact weight of your sash. Once you have the sash weight you'll be able to select the stamp you need using the chart below the product description for the balance you need. The provided links will take you to the product page.