EVH-301
Model EVH-301 protects air intake and exhaust openings in exterior walls sensitive to water penetration. The design features a drainable head and vertical rain resistant blades to provide exceptional resistance to wind driven rain.
  • 3-inch depth
  • 53% free area (4 ft. x 4 ft.)
  • 1,250 fpm free area velocity at the beginning point of water penetration

EVH-301
Model EVH-301 protects air intake and exhaust openings in exterior walls sensitive to water penetration. The design features a drainable head and vertical rain resistant blades to provide exceptional resistance to wind driven rain.
  • 3-inch depth
  • 53% free area (4 ft. x 4 ft.)
  • 1,250 fpm free area velocity at the beginning point of water penetration