Ships to U.S. Lower 48 States Only. The SOLAR SCREEN Sierra 800 disappearing retractable shade for large openings like porches, patios, gazebos, lanais and large windows is the ideal solution for enclosing these types of openings while allowing for protection from the sun's harmful rays, enjoyment of cooling fresh airflow while keeping out bugs and pests. Commercial establishments like offices, stores, restaurants and bars use the Sierra 800 on their picture windows and other openings to shade, enclose, secure, and ventilate their rooms. All Sierra 800 with SOLAR SCREEN fit openings from 24"H to 80"H. There are separate models for different widths ranging from 26"W to 108"W. Simple cut-down instructions are included so that the Sierra 800 may be cut to fit. The Sierra 800 may be surface mounted on the outer or inner surface of the jambs or recess mounted on the interior surface of the jambs. The SOLAR SCREEN shade mesh is 20x30 fiberglass insect screen that stops up to 65% of the sun's heat and glare. The 20x30 weave is also an effective barrier for tiny insects. The Sierra 800 stays out of sight in its form fitting cassette into which the screen rolls up when not in use. When needed, simply roll down the screen from the cassette using the pull chain and sit in you screened-in, cool, comfortable open space. Enjoy the outdoors free from bugs!