TRUAIRE ADJUSTABLE 1-WAY WALL / CEILING REGISTER, 10 IN. X 4 IN.

The 210VM series is a 1-way air register used for wall or ceiling openings
The adjustable vertical front bars allow for one way air flow
Smooth glide technology ensures rattle free and quiet airflow from your central air system
Smooth glide also provides for smooth opening and closing of back dampers
Product features: adjustable vertical blades, solid steel construction, white powder-coat finish, recessed screw holes & beveled edges
Duct opening measurement: width x height