They say you can’t teach an old dog new tricks. They were wrong. We’ve re-engineered this classic window to glide easier than you could ever imagine. Like the horizontal slider, it features the Slide n’ Hide retractable insect screen that automatically triggers when you open your window, and automatically disappears when you close it. Vertical sliding windows are available in single sliding, double sliding, and triple sliding configurations, and all double and triple sash configurations allow for the tilting of both sashes so that you can clean the windows outside glass from the inside of your home.