Floor Register, Overall Depth 1 3/8 in, Overall Height 11 1/2 in, Overall Width 5 1/2 in, Maximum Opening Height 9 7/8 in, Maximum Opening Width 4 in, Filter Depth 1 3/8 in, Filter Height 11 1/2 in, Filter Width 5 1/2 in, Grille Color Black, Grille…