OAL4F 4" Deep Outside Air Louver with Bird Screen


Click below to choose a size
Model # Opening Size Louver Depth Overall Size
OAL4FAL12X12 12x12 4" 13.375x13.375
OAL4FAL14X14 14x14 4" 15.375x15.375
OAL4FAL16X16 16x16 4" 17.375x17.375
OAL4FAL18X18 18x18 4" 19.375x19.375
OAL4FAL20X20 20x20 4" 21.375x21.375
OAL4FAL24X12 24x12 4" 25.375x13.375
OAL4FAL24X24 24x24 4" 25.375x25.375
OAL4FAL30X24 30x24 4" 31.375x25.375
OAL4FAL30X30 30x30 4" 31.375x31.375
OAL4FAL36X24 36x24 4" 37.375x25.375
OAL4FAL36X36 36x36 4" 37.375x37.375
OAL4FAL48X24 48x24 4" 49.375x25.375
OAL4FAL48X36 48x36 4" 49.375x37.375


4" Outside Air Louver


  • Extruded aluminum construction
  • 45° blade angle
  • 4" louver depth
  • Blades overlap to provide wind and rain protection
  • Includes bird screen
  • Mill finish

OAL4FAL Spec Sheet

OAL4FAL Performance Data