Anderson Sash Balance

Question

Are these pictures good enough to identify the parts I need? I can remove them and take more pictures if I have to. Note the sticker marked 9-31, and the number 8-85 stamped into the metal.

Thanks for the help

User submitted image of their window hardware.

Paul · Accepted Answer

Based on that 9-31 number, I recommend our 24-939 Andersen sash balance.