The Pella 150 Series sliding window (XO configuration) measures 35.5"W x 35.5"H and features a white vinyl frame with dual-pane insulated Low-E 180/Clear glass and argon gas fill for improved energy efficiency. NFRC Energy Ratings: U-Factor 0.30, SHGC 0.53, VT 0.64. High-altitude rated and NFRC certified. Includes a full screen on the operable sash. Note: this unit has a Faulty Merchandise Slip attached and should be carefully inspected prior to purchase to confirm condition and operability.
