Models 1605WDVM and 1675WDVM Miami-Dade Qualified Vertical Wind-Driven Rain Resistant Drainable Blade Louvers provide protection for air intake and exhaust openings in exterior walls. Tested and qualified per Florida test protocol TAS-100A (Wind Driven Rain), TAS-201 (Large Missile Impact), TAS-202 (Uniform Static Air Pressure) and TAS-203 (Cyclic Wind Pressure Loading) and approved for wind loads of +/-130 PSF (size and configuration dependent, refer to Intertek Listing for size and design load rating). With highly efficient vertical blades, the 1605WDVM is ideal for minimizing water penetration and wind-driven rain, while maintaining a high free area. Models 1605WDVM and 1675WDVM are listed to AMCA 540 Level E and AMCA 550, and are AMCA certified for 500-L Air Performance, Water Penetration and Wind-Driven Rain.