New construction hopper basement window featuring energy saving South Glass Pack. Includes fully welded frame and sash with pre-punched nail fin. Duralite warm edge insulated glass spacer system. Integral nail fin with brickmold design exterior profile and half screen. Clear IG screen, nail flange, and J-channel return. Exterior glazed with dual wall tower technology. Self-sealed sill overlap resists water infiltration during extreme weather conditions. Attractive low profile lock meets or exceeds industry performance requirements. Limited lifetime warranty.