31 5 HU CMC 2 Window balance

Hey there,

Your balance is, likely, either the S380-32 with a 1" shoe or the S385-32 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. If your depth dimensions does not match either of these please let me know the written measurement.

You'll need to select the 3150 stamp option.

Comparison of the S378, S380 and S385 balance shoes.