White tip 38" spiral balancer

Hello there. Is for a tilt or non-tilt window? Is the metal tube, up to but not including the white tip, 38" long? What is the diameter of the outer metal tube? Is it 3/8" or 5/8"? Finally, the white tip is an outmoded rating system, so you'll need to weigh the window sash this spiral balance helps support to determine the right color tip replacement. Give us this information and we can narrow down what you need.