Fibertec’s 400 series slider window is ideal for retrofit and new construction applications. This window features two sashes that operate horizontally allowing air circulation through the both the right and left side, thus providing maximum ventilation as well as tilt-out access for easy window cleaning and maintenance. Fibertec windows provide one of the most narrow sight lines, thus giving you more glass area. The slider window is more suitable for wider openings. Fibertec window & door mfg. carries the most extensive glass options available to cater to extreme weather climates. Anti-corrosion screens are on the outside of the window, and come in standard full screen or optional half screen. Fibertec has developed a fiberglass window system featuring advanced technology, resulting in one of the world`s best energy-rated systems that is environmentally friendly and issued in sustainable building.Once installed in your home, Fibertec windows will never warp, twist, rot, shrink, or dent.