The patented Parallex™ system offers unmatched ease of use with a single handle operation for slide, tilt and multi-lock function on hung and slider windows. Our unique casement and awning hardware completely eliminates the use of a crank. Parallex is effortless and safe to operate while delivering improved ventilation, maximized egress, and increased security from hidden locks.
  With Parallex hardware, window sashes swing inward to offer increased ventilation, while making cleaning exterior glass a snap. By offering quick operation and maximizing the opening space, Parallex, allows for faster emergency exits.