This Pella 250 Series white vinyl double-hung window measures 63.5" wide x 46" tall and comes in its original box in like-new condition. Designed for high-altitude climates with argon gas fill for improved insulation. Features include a solar heat gain coefficient (SHGC) of 0.48, visible transmittance of 0.59, annealed glass, and a lockable design for added security. Listed as 'two wide,' indicating a dual-unit configuration. Compatible with Denver-area elevation requirements. Includes window unit only.