Model AFL-601 is an all-in-one wind-driven rain FEMA dual-module with horizontal front blades and vertical rear blades designed to protect air intake and exhaust ventilation openings on FEMA 361/320 storm shelters or safe rooms. It is tested in accordance with the stringent ICC 500 (2020 & 2023) test standard and is UL Listed. AFL-601 is AMCA 540 Listed for Wind-Borne Debris Impact and AMCA 550 Listed for High-Velocity Wind-Driven Rain.

  • 6-inch depth
  • 43.6% free area (4 ft. x 4 ft.)
  • 1250 fpm free area velocity at the beginning point of water penetration
  • Class A Wind-Driven Rain Performance
  • Patent pending


AMCA 500-L Water Penetration, Air Performance, and Wind-Driven Rain

AMCA 540 Test Method for Louvers Impacted by Wind-Borne Debris (Basic Protection, Missile D and Enhanced Protection, Missile E)

Tested in accordance with ICC 500 (2020 & 2023)

AMCA 550 High Velocity Wind Driven Rain

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