This United Window & Door PRO Series New Construction window features a solid white vinyl construction that is not only aesthetically pleasing, but also highly durable and resistant to peeling, warping, blistering, and flaking. The window also includes Low-E and Argon gas filled double pane glass for superior energy efficiency. With a fully welded frame and sashes, both the top and bottom sashes can open for ventilation, and tilt in for easy cleaning. The exterior and interior are both made of Brilliance white vinyl. The window also boasts a corrosion resistant, Teflon coated, stainless steel constant force balance system for effortless opening and closing. The true sloped sill with weather-tight design effectively repels water, and the Nite locks provide added security by limiting window opening to no more than 2 inches. The full screen is made of a dark fiberglass mesh, allowing for ventilation and unobstructed views while keeping insects out.