29DS38

Hey there!

Thanks for reaching out to us. Take a look at the S380-30 and S385-30 channel balances. You'll have to measure the bottom shoe as shown below to determine the best match. 

The 38 in your stamp indicates the weight of the window sash. If the window is 38 pounds, you can select the 2965 stamp option. A pair of balances with this stamp will support a sash weighing 35 to 39 pounds.

Please let us know if you have any questions!

Comparison of the S378, S380 and S385 balance shoes.