Certainteed window balance. 1 3/8" x 1/2"

Question

I'm not sure if the part is called a balance or a slide.

Paul · Accepted Answer

Taking a look at what I can see of the pivot shoe in your photo, I am reminded of our 15-175. Have a look and see if this is the correct piece. You will ultimately need to remove yours from the window to compare your measurements with ours.