RELIABILT 3900 Series 23-3/4-in x 61-1/2-in White Exterior White Interior Vinyl Replacement Double Hung Window Low-E argon Double Pane Glass (Half Screen Included)

3900 Series 23-3/4-in x 61-1/2-in White Exterior White Interior Vinyl Replacement Double Hung Window Low-E argon Double Pane Glass (Half Screen Included). The best performing replacement window Series in just about every aspect. Identified by a leading consumer magazine as a ‘top-rated vinyl replacement double hung’ window. With a standard lifetime accidental glass breakage warranty, Design Pressure (DP) rating of 60, and available R-4 thermal performance, the 3900 Series provides the best a vinyl window has to offer. Features the highest quality, maintenance-free vinyl, exclusive InsulKor™ fiberglass-enriched polyurethane reinforcements, all-welded frame and sash corners, and insulated glass for reduced condensation and better energy efficiency. Both sashes tilt in for easy cleaning, and both operate smoothly with an integrated, full-length, slim-line lift rail on each sash as well as a constant force coil balance system. Designed for both replacement and new construction applications, the window installs easily with included head expander, sill angle and 3 jamb adjusters, and an external accessory grove which accommodates a nail fin option. Features a 4-1/4-in frame thickness for an enhanced appearance and structural integrity. Window comes standard in white and includes an extruded half screen; additional sizes, factory mulling, glass, grid, screen, painted, laminated and vinyl colors, and warranty options are available; see local sales associate for available custom options. Features energy-efficient Low-E glass to help reflect the sun’s heat away from your home in the warm summer months and to keep the warmth inside your home during the colder winter months, as well as the added thermal efficiency of Argon insulating gas