High Performance under the most EXTREME CONDITIONS! Pottorff's Full Line of Severe-Duty Louvers AMCA Certified AMCA-540 and AMCA-550 Listed Miami-Dade Certified Florida Building Code Approved Texas Department of Insurance Listed Our Newest Release The ECV-345-MD 3" Vertical Blade Miami-Dade Louver Our ECV-345-MD is the ONLY louver in its class on the market which offers maximum protection for BOTH standard water penetration and wind-driven rain. Pending Miami-Dade approval www.pottorff.comhttp://www.pottorff.com