EZ-FLO 4 x 10 Inch (Duct Opening) Floor Register Vent 4 in. x 10 in., Brown
X 10 in., Brown. FLOOR VENT: One-way deflector fits a 4 in. x 11-1/2 in; suitable for floor mounting in most standard openings. EASY TO INSTALL: Drop-in design fits easily into floor openings with no tools or mounting hardware required; includes a clean, easy-to-maintain brown finish.