The turn-tilt fitting systems of Winkhaus have a modular design. With a manageable number of components, they open up a broad spectrum of system solutions for window manufacturers. Manufacturers also benefit from significant cost advantages with regard to warehousing, investment in inventory, distribution and production achieved due to the reduced number of components. Types of fittings: activPilot: (activPilot Concept, activPilot Control, activPilot Select, activPilot Giant, activPilot Ergo, activPilot Elegance, activPilot Sprint); proPilot.