K2’s Tilt and Turn windows highlight the precise engineering found in many European window designs. A unique and specialized gearing system allows the same window operable window to function in two distinct positions. The sash can either hinge from the bottom and fold inward to allow moderate ventilation from above, or it can hinge on the sides and swing inward 180 degrees, providing a full screened opening. The choice is yours, and is simply determined by the position of the handle.