I haven't taken the window apart yet, but based on window size, it looks like I need the 837 sash balancer.
Here's my question: Is there a left and right balancer for the 837. I replaced the balancer in some larger windows years ago and there was a left and right balancer required.
Thanks
Tom from SWISCO responded:
August 20, 2020
Hello! There is no right or left version of the 24-837, no. There are some other Andersen operators that work that way, but this particular product can work for both sides interchangeably.