Window balance

Hello,

Thanks for writing in! The stamp from your window balance only denotes the weight range a balance can hold to support a particular sash weight. Unfortunately, I would not be able to use it to determine the exact balance replacement you need. 

That being said, I'll need to see photos of the top and bottom attachments from the balance to make an accurate part recommendation.

Thanks for the additional photos. You'll need either the S380-30 or the S385-30. To confirm which of these is the correct replacement, you'll need to confirm whether your shoe depth measures 1" or 1-3/32".

You can select the 2930 stamp option.

Comparison of the S378, S380 and S385 balance shoes.