Differenece between Andersen 737 and 837

Question

Hi can you please tell me the difference between the 737 and the 837 anderson window balancer parts? I believe my window to be a anderson narroline 3032 since the glass size of each the top & bottom sash is approx 15 14/16 inches height and 32 7/16 with. However it is unclear if the balancer is the 737 or the 837. Thank you.

Bob · Accepted Answer

Thanks for posting. The 24-737 and 24-837 have different strength ratings. The only way we can recommend one over the other with high confidence is to see the stamped codes on your original balance box. One of these stamps should indicate which balance you need. It is the only way to know for sure. If you can provide us pictures of all the stamps on your original balance, we'll go from there.