Andersen double hung balance

A home owner from Pa. says:
Numbers should be visible on picture. I can't remember which windows these belongs to.
Thumbnail of the uploaded file named IMG_5587.JPG
Thumbnail of the uploaded file named IMG_5590.JPG
Profile picture of Tom
Tom from SWISCO responded:

Hello! Looks like these are two differently calibrated balances. I know you said you don't remember what windows they go to, but can you at least confirm that they're two different sizes? I just want to be sure they're not off the same window. 

If they aren't, then we're good to go. The key numbers here are "939" for the first one and "837" for the second; with that in mind, I recommend the 24-939 and 24-837, respectively. I am very confident these will work for each type shown.

Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 4-7 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at 856-317-6263 or at