https://www.openlearning.com/u..../schoumarkussen-sl70
Replacing uPVC Window Handles It is simple to change the handles on upvc windows. It is crucial to ensure that the replacement handle is fitted into the spindle cutouts in the window mechanism. If you follow the steps below any cockspur handle can fit on most windows. The step height of the handle is crucial. What to Find As time passes, uPVC handles on many windows in the UK begin to show signs wear and wear and tear. The handle of the window may become loose or difficult