Replacement 1/2" balance mechanism channel including top and shoe (block and tackle)

Question

I have acquired 25 used aluminum windows that I plan to install in an older downtown building remodel. The balance mechanisms all need to be replaced. I don't see a distinction between 104 and 105 shoes. The tops on mine appear to be 19-005. The balance rod is stamped 2340, so I assume that 23" is the length. Just guessing I believe mine are either the 380 or the 385 series. I may have you send me one to verify the proper unit before I order 50 units. Thank you so much. I look forward to your response.

User submitted photos of a window balance.

Paul · Accepted Answer

Thanks for posting. When you say 104 and 105 shoes, do you mean our 15-004 and 15-005? If so, the difference is in their depths. The 15-004 has a 1-3/32" depth, while the 15-005 has a 1" depth. Take a look at the images below to see what I mean.

Comparison of 15-004 and 15-005

Just by eyeballing yours, I think you might have the 15-004 shoe, but double check the depth just to make sure.

Comparison of 15-004 and 15-005

Just by eyeballing yours, I think you might have the 15-004 shoe, but double check the depth just to make sure.