Pella 250 Series white vinyl fixed picture window in horizontal orientation. Rough opening approximately 30-inch wide by 18-inch tall; unit dimensions 29.5-inch high by 17.5-inch wide. Features Low-E 180/189 glass with argon gas fill, high-altitude rated construction, and ENERGY STAR certification. NFRC ratings: U-Factor 0.22, SHGC 0.54, VT 0.66. Fixed frame — non-operable. Like new condition, in original box with no damage or missing parts.