Greenheck: Louver | ACHR News
The AFL-601 is the first wind-driven rain FEMA louver to be listed for AMCA 550 High-Velocity Wind-Driven Rain. Constructed of extruded aluminum with a 6-inch frame depth, the unit’s dual module design incorporates front chevron blades with rear vertical rain-resistant blades for superior weather resistance.
Source: achrnews.com