Floor Register, Overall Depth 1 3/8 in, Overall Height 13 1/2 in, Overall Width 3 3/4 in, Maximum Opening Height 12 in, Maximum Opening Width 2 3/8 in, Filter Depth 1 3/8 in, Filter Height 13 1/2 in, Filter Width 3 3/4 in, Grille Color Black, Grille…