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aluminum ventilation grill

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aluminum ventilation grill aluminum ventilation grill - ESD-635


  • Materials:



Model ESD-635 is an extruded aluminum stationary drainable louver that protects air intake and exhaust openings in exterior walls. The drainable head and stationary horizontal drainable blades collect and further channel water to the vertical downspouts located in the louver jambs where gravity takes effect, allowing water to escape at the louver sill.

6-inch depth
59% free area (4 ft. x 4 ft.)
1,250 fpm free area velocity at the beginning point of water penetration