4" Deep Standard Flat Blade Louver

is a 4" deep louver with a standard blade. This louver style is ideal for a clean architectural appearance at a low cost. If you are intending the louvers to be used for general ventilation or air exhaust, this is the right choice. Louvers with a higher performance rating - more free area and lower pressure drop - are also available (E4JP, E6JP).


  • 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
  • 5" blade spacing
  • Standard blade
  • Internal Screen (Bird Screen)


  • 50.4% free area for a 48" wide x 48" high louver
  • 888 fpm first point of water penetration
  • 30 psf wind load design
  • 3.70 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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