Hurd. The company has expanded its H3 Energy Star-rated product line to incorporate double-hung units. The technology integrates three materials into the window frame: 0.050-inch extruded aluminum cladding, vinyl, and solid wood for improved energy efficiency and enhanced performance, the company says. It features a concealed wood jambliner and easy-tilt operation for easy cleaning and is available with the company’s low-E 366 glass for a U-factor of 0.29. 800.433.4873. www.hurd.com.