Single hung window balancing rails

Hi there!

Thank you for waiting during this busy season. Your balance looks like it could be a match for the S380-29 or S385-29. The best match will depend on the depth of the bottom shoe, as shown below.

The 2840 stamp may replace your old one, but we recommend weighing the sash on a scale to confirm it falls within the 23 to 28-pound weight range. 

Please let us know if you have any questions. 

Comparison of the S378, S380 and S385 balance shoes.