_:n40f5a829c84f4355a235931e4bbe6e06xb0
<http://schema.org/description>
"<p>\n\tModel AFL-501 is a 5.5-inch-deep, severe-duty aluminum louver that protects exterior wall penetrations on FEMA 361- or 320-compliant storm shelters or safe rooms.</p>\n"
<https://www.achrnews.com/articles/127775-greenheck-fan-corp-aluminum-louver>