Model ESD-635X is a Florida Product Approved stationary drainable blade extruded aluminum louver designed to protect air intake and exhaust openings in exterior walls. The ESD-635X is AMCA 540 Listed for Wind-Borne Debris when selected as such and is approved for use in Florida’s High Velocity Hurricane Zone.

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


AMCA 500-L Water Penetration and Air Performance

AMCA 540 Test Method for Louvers Impacted by Wind Borne Debris (Basic Protection, Missile Level D and Enhanced Protection, Missile Level E with 0.125 in. frame and blade material thickness)

Florida Test Protocol: TAS 201 Large Missile Impact

Florida Test Protocol: TAS 202 Uniform Static Air Pressure

Florida Test Protocol: TAS 203 Cyclic Wind Loading

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