Please Help me replace These Andersen Balancers

Question

I need to know what replacement part I need for my window. Thank you for your time.

User submitted a photo of a window balance.

Tom · Accepted Answer

Thank you for posting! I think you should check out our 24-637 for the first picture, since this can replace balance boxes stamped with 6#31, and the 24-939 for the second picture, since this can replace balance boxes stamped with 9#27.