Kinro window balance

Hey there,

Thanks for reaching out! Your balance looks similar to either the S380-30 with a 1" shoe or the S385-30 with a 1-3/32" shoe. Since your balances are stamped with a 29-3, you'll need to select the 2930 stamp option.

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. 

Keep in mind, there is a chance that it could measure 7/8". If so, please let me know as these will need to be a custom assembly.

Comparison of the S378, S380 and S385 balance shoes.