I have two sets of window channel balances to fix. I would like your help verifying that I'm buying the correct replacements. One set has the indication "25C" on the side, and the other has "16A". Both are non-tilting and have 1/2" channel width. The actual channel length appears to be 26" and 17" respectively. My best guess at the series is #390. From the attached photos, is this the correct part?
I'm not sure what weight range each sash falls within and there is nothing else stamped. How do I determine the weight range?
Thanks,
Ronnie
