WINDOW BALANCE I NEED

Thanks for reaching out! Your balance can be replaced with either the S351-29 with a 1" shoe or the S390-29 with a 1-1/8" 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. 

You'll need to select the 2830 stamp option.

Comparison of the S351 and S390 balance shoes.