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Model SED-501 is an extruded aluminum stationary drainable sightproof louvers with drainable chevron-style blades that protect the intake and exhaust openings in exterior walls. The drainable head and stationary horizontal drainable sightproof blades collect and channel water to the vertical downspouts located in the louver jambs where gravity takes effect, allowing water to escape at the louver sill.

• 5-inch depth
• 57% free area (4 ft. x 4 ft.)
• 1134 fpm free area velocity at the beginning point of water penetration