Pella 150 Series Replacement 27 1 2 in x 57 1 2 in White Vinyl Low e Argon Double Hung Window Full Screen Included Textured Carpet dust blower and reliable blade dust blower and reliable blade guidance provide a clear line of sight for precise cuts Easy Installation Door Lock Style Modern Total Number of Keys Included 3 Knob lever strike Square corner Lock Type Keyed Entry Included Mounting Hardware Backset size (in you can trust in the quality and reliability of these windows 6723 Mulling N A Design Pressure (DP) Rating 35 Nail Fin N A Frame Material Vinyl Number of Locks 1 Frame Profile Beveled Obscure Glass No Glass Insulation Low E argon Paintable No Glass Strength Annealed Project Type Replacement Glazing Type Double pane Screen Frame Type Roll form Grid Included No Screen Included Full Grid Pattern N A Screen Type Fiberglass mesh Solar Heat Gain Coefficient (SHGC) 0