This Pella Impervia 48x48 white aluminum sliding window is in like-new condition and comes in its original box. It features a do-vent and fixed configuration, annealed Low-E glass, and is filled with high-altitude argon gas for superior insulation at elevation. Solar heat gain coefficient is 0.21 and visible transmittance is 0.48, making it energy-efficient for Colorado climates. Dimensions: 48 inches wide x 48 inches tall. Window only included. No damage or missing parts.