Pella 150 Series New Construction 31 1 2 in x 37 1 2 in White Vinyl Low e Argon Double Hung Window with Grids, Full Screen Included Rural Mailboxes Rugged aluminum housing Tempered pebbled glass Rugged aluminum housing Tempered pebbled glass lens 1 2 in 5 Door Material MDF Color Finish Satin White Shelf Thickness (in Experience exceptional insulation and professional design with the Pella® 150 Series low e argon double hung window 4447 Mulling N A Design Pressure (DP) Rating 35 Nail Fin Integrated Frame Material Vinyl Number of Locks 2 Frame Profile Beveled Obscure Glass No Glass Insulation Low E argon Paintable No Glass Strength Annealed Project Type New construction Glazing Type Double pane Screen Frame Type Roll form Grid Included Yes Screen Included Full Grid Pattern Traditional Screen Type Fiberglass mesh Grid Profile Contoured Solar Heat Gain Coefficient (SHGC) 0