Identifying numbers appear to be 11 600A- 3
Also 11600-17
BR 1689? or BR 6 89 maybe manufacture date coincides with home build date
Anderson stamp is present and then Can and USA Pattent #'s
Anderson Balance needed
Quick Learner from MD
Sep 22, 2026 5:06 pm
5 user uploaded images
2 Replies
Jasmine from SWISCO
Sep 25, 2026 2:58 pm
Thanks for reaching out! This balance can be replaced with the 24-939 Andersen Sash Balance. These are used to replace balances marked with a 927, 931, 937, and 939.
You'll need the same balance to replace the right and left hand sides.
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