The Series 2700 is a 3-¼-inch jamb aluminum tilt-in sash double-hung window with enhanced energy performance and an AW-rated model. Suitable for a variety of replacement and new construction applications, the Crystal Series 2700 meets the latest stringent energy code requirements of New York City and other jurisdictions. It is available in both commercial window CW-PG50 and architectural-rated AW-PG50 versions. It features a fast draining sloped sill, easy clean tilt-in sashes and an aesthetically pleasing equal sightline design. The 2700 Double-Hung also includes a full width auto-lock pull/lift rail at the head and sill, as well as a continuous weather strip at the meeting rail for improved air and water tightness.