Our double hung windows feature our exclusive Super Spacer system. This all-foam formula separates the panes of glass in the window, and conduct less heat and cold than conventional metal spacers. This provides the window with the warmest possible edge giving it amazing thermal performance. All double hung windows offered by Universal Windows Direct are custom made and installed to guarantee a perfect fit every time. By custom manufacturing all of our products, we allow you the home owner, the opportunity to customize the exact style for your home.