4" Deep Drainable Blade Louver

is a 4" deep louver with a drainable blade feature to channel water away from the blades. This feature allows higher air intake velocities before entraining water. If your application is air intake, consider this or other drainable louvers first. If this louver will not handle your intake velocities, consider a deeper louver, a high perfomance louver, or a wind driven rain louver instead (E4DP, E6DP, E6WH).


  • Made to order in sizes 12" wide x 12" high up to unlimited size
  • Made from heavy gauge 0.081" thickness aluminum extrusion
  • 4" frame depth, channel frame
  • 4.25" blade spacing
  • Drainable blade
  • Internal Screen (Bird Screen)


  • 56.0% free area for a 48" wide x 48" high louver
  • 930 fpm first point of water penetration
  • 30 psf wind load design
  • 2.95 pounds per square foot average weight


  • A variety of metal finishes including paint and anodizing
  • Insect Screen (replaces bird screen)
  • Mounting: flange frame, glazing channel frame, "J" channel frame
  • Special shapes for architectural appeal
  • Higher wind load ratings
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