ReliaBilt 3900 Series 31.75-in x 45.25-in x 3.25-in Jamb Vinyl Replacement Hunter Green Double Hung Window ENERGY STAR North/Central Zone ENERGY STAR South/Central Zone ENERGY STAR Southern Zone

The industry’s 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. Feat...