Airolite louver type SCH401 is a storm class louver designed and rated to provide high volume intake and exhaust ventilation and the greatest level of protection against water penetration. The design incorporates a drainable head and horizontal blades to provide maximum resistance to wind-driven rain.

Specifications Hide all

Beginning Point of Water Penetration 1,043 fpm (5.30 m/s)
Pressure Drop at Beginning Point of Water Penetration 0.215 in. wg (0.05kPa)
Test Standard AMCA Standard 500-L Water Penetration, Air Performance and Wind Driven Rain
Percent Free Area 42% (4 ft. x 4 ft.)
Louver Depth 4” (101.6 mm)


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