EcoSmart is a new generation of windows and doors that are high-performing and strong. Engineered for easy opening and for energy efficiency, the windows feature high-density polyurethane insulation in the frame and sash and an energy-efficient I-Core warm edge spacer system to reduce thermal transfer. EcoSmart by Great Lakes Window.888-975-9436. www.ecosmart-windows.com.
Great Lakes Window’s EcoSmart
