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
