I am having trouble identifying my replacement part.
I took one out and the number on it is P73 12#27 9 84
This is a double hung window and does not tilt in or out.
Tom from SWISCO responded:
June 20, 2017
Our 24-1231 Andersen sash balance should be a good replacement for what you currently have. Please take a look and let us know if you agree.