Pella 150 Series Replacement 35 1 2 in x 37 1 2 in White Vinyl Low E Argon Double Hung Window with Grids, Full Screen Included Greywolf Motor Speed (RPM) 1610 RPM EB11700 Motor Speed (RPM) 1610 RPM Motor Type AC Mounting Type Downrod Mount Number of Blades 3 Number of Speeds 3 Recommended Room Size Small Room (250 sq A must have utility piece that elevates everyday tasks with luxe Pella 150 Series 35 1 2 x 37 1 2 in 8081 Jamb Depth Measurement 3 1 4 in Color Finish Family White Interior Color Finish White Exterior Color Finish White Hardware Color Finish White Frame Material Vinyl Frame Profile Beveled Glazing Type Double pane Glass Insulation Low E argon Glass Strength Annealed Grid Included Yes Grid Pattern Traditional Grid Profile Contoured Grid Width 3 4 in Grid Type Between the glass Screen Included Full Screen Type Fiberglass mesh Screen Frame Type Roll form Lock Type Cam Number of Locks 2 Tilting Yes Tilt Mechanism Flush Ventilation Latches Double Argon Gas Insulated Yes Balance System Constant force Design Pressure (DP) Rating 35 Solar Heat Gain Coefficient (SHGC) 0