DiversiTech 650-300 Egg Crate Louver, 2 ft H x 2 ft W Duct, Polystyrene, 1/2 Inch Wall Opening, White
Manufacturer part number: 650-300
DiversiTech Egg Crate Louver, 2 ft Duct Height, 2 ft Duct Width, 1/2 Inch Wall Opening, 1/2 Inch T, Polystyrene, White