Pella 57" x 63.5" white aluminum fixed picture window in like-new condition. Features a black interior/exterior grid, annealed glass, and Advanced Low-E coating rated for high-altitude installation. Solar Heat Gain Coefficient: 0.29; Visible Transmittance: 0.55. Fixed (non-operable) frame provides maximum view and natural light. No damage reported. An excellent large-format window for living rooms, great rooms, or feature walls in Colorado homes.