This Prime 6000 Fixed white vinyl picture window has an actual glass unit size of approximately 47.75" x 53.75" and is designed to fit a 60" x 48" rough opening. Features Clear Low-E glass for energy efficiency, a clean modern look with no grids, and a white vinyl frame. Lowe's item #8385713. Custom order that was never installed — nail fin has been removed for retrofit installation. No damage noted. An excellent energy-efficient window at half the retail price.