The Single / Double Hung Window features a timeless vertical sliding design combined with modern thermal break aluminum construction for enhanced energy efficiency and durability. Equipped with double tempered Low-E insulated glass filled with argon, it effectively reduces heat transfer while maintaining clear visibility and indoor comfort. High-quality Caldwell hardware ensures smooth and reliable operation, while the stainless steel screen provides ventilation with added protection. With optional internal or external grids and clean, contemporary color choices, this window is ideal for both traditional and modern residential applications.