Eggcrate Grille, Overall Depth 7 in, Overall Height 23 3/4 in, Overall Width 23 3/4 in, Maximum Opening Height 24 in, Maximum Opening Width 24 in, Filter Depth 1 in, Filter Height 20 in, Filter Width 20 in, Grille Color White, Grille Material Plastic, Material Plastic, Damper Material Not Applicable, Bar Spacing 1/2 in, Face Design Egg Crate, Airflow Directions Four-Way, Adjustable Blades No, Mounting Location Ceiling, Mounting Style Lay-In, Blade Angle 90 Degrees , Finish Smooth