Horizontal Blade Louvers - EHH-501

Model EHH-501 protects air intake and exhaust openings in exterior walls sensitive to water penetration. The design features a drainable head. Horizontal rain resistant blades provide exceptional resistance to wind driven rain. 5-inch depth 43% free area (4 ft. x 4 ft.) 1,250 fpm free area velocity at the beginning point of water penetration Class A Wind Driven Rain performance