The H168-ODF 04X10 is 4 in. x 10 in. 2-way air diffuser used for floor openings. The face is made from oak and comes in a dark finish. Our patented Smooth glide technology ensures rattle free and quiet airflow from your central air system. Smooth glide also provides for smooth opening and closing of your back dampers.. Provides optimum airflow from your central air system. Oak construction with steel components for longevity. Offers silent opening/closing of back dampers. High quality oak. Dark finished. High quality steel components. Allows air to flow freely between your ventilation systems to a room. Air deflection: 2-way. Color: Brown. Color Family: Browns/Tans. Features: Louvered. Installation Location: Floor. Material: Wood. Maximum Duct Opening Length (in.): 10 in. Maximum Duct Opening Width (in.): 4 in. Pack Size: 1. Product Weight (lb.): 1.25 lb. Shape: Rectangular. Outside Length (in.): 5.5 in. Outside Width (in.): 11.5 in