Pella 250 Series 59 1 2 in x 47 1 2 in x 3 1 4 in Jamb Left operable Vinyl White Sliding Window Half Screen Included Metal Corbel Wheels Manufacturer Warranty 1 Year Wheels Manufacturer Warranty 1 Year Limited Warranty Frequently Asked Questions (FAQ): drive ratchet and socket set offers better access in tight spaces and maximum tool strength Easy Nail Fin installation is ideal for new construction 4462 Nail Fin Integrated Design Pressure (DP) Rating 35 Number of Locks 1 Frame Material Vinyl Obscure Glass No Frame Profile Flat Paintable No Glass Strength Annealed Project Type New construction Glazing Type Double pane Roller Type Vinyl rollers Grid Included No Sash Configuration 2 lite Grid Pattern N A Sash Operation (Exterior View) Left operable Grid Profile N A Screen Frame Type Roll form Grid Type N A Screen Included Half Impact Resistant No Screen Type Fiberglass mesh Insect Screen Included No Solar Heat Gain Coefficient (SHGC) 0