Marvin Next Generation Ultimate Double Hung Windows

Each sash on the Next Generation Ultimate Double Hung locks directly to the jamb, so one can be opened while the other stays securely in place. Sashes are controlled via a single sweep mechanism and tilt in for easy cleaning. A vent mode lets the user lock the bottom sash open. A 3-by-5-foot pine unit with exterior aluminum cladding should be about $725. Marvin, 800.328.0268, marvin.com