Spiral balancers

Thanks for posting. I am confident we can help, but I am afraid going by the general window size is not sufficient to identify spiral balances. For each window you'll need to remove the spiral balances and measure the diameter of the outer tube, as well as the length of the tube, up to but not including the color tip. We'll also need to see the color tip. See the videos below for more details. We'll be happy to help from there.