Door Louver, Material Steel, Finish Gray Primer, Louver Opening Height 16 1/2 in, Louver Opening Width 16 1/2 in, Rough Opening Height 16 1/2 in, Outside Height 18 1/8 in, Outside Width 18 1/4 in, Free Area 1 sq ft, Flange Width 1 1/4 in, Maximum Door Thickness 2 1/4 in, Minimum Door Thickness 1 3/8 in, Rough Opening Width 16 1/2 in, Blade Angle 45 Degrees, Adjustable Blades No, Intake or Exhaust Application Exhaust, Intake, Includes Fasteners, Number of Blades 30.
This item has been restricted from sale in the following state (s): []