This Pella CGF01 fixed frame picture window measures 23.5" W x 41" H and features a clean white vinyl frame with annealed SunDefense Low-E glass formulated for high altitude performance. As a fixed/non-opening window, it maximizes glass area, natural light, and views. NFRC certified energy ratings include a U-Factor of 0.32, Solar Heat Gain Coefficient of 0.24, and Visible Transmittance of 0.57. Brand new and never installed.