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 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...