System 4500 tilt-turn windows

A very unique product for large openings in both residential and commercial markets.
The tilt-turn is the dominant window style in Europe, now gaining popularity among discerning architects, designers and homeowners in North America. The System 4500 is a versatile design featuring three windows in one: An inward opening casement in the turn position, a secure top-venting hopper in the tilt position and a tightly sealed picture window when closed.


  • Multiple locking points and dual weather seals for optimal air and water tightness.
  • Up to 1 3/8 in glazing capability for increased energy efficiency and acoustical performance.
  • Large chambers for accommodation of reinforcements required for large openings and heavy commercial applications.
  • High-definition finish for weather and stain resistance and ease of maintenance.