Code compliant throughout the U.S. Protects against water damage to home and door Recessed slope and end dams help prevent corner dribbling For rough openings up to 42 in. wide Made of durable PVC/plastic material The SureSill 1-3/8 in. x 42 in. White PVC Sloped Head Flashing for Door and Window Installation and Flashing (Complete Pack) can help protect your investment against water intrusion and mold. It is suitable for use with windows or doors