Install a 2-Way Air Vent Cover
What you'll need
ScrewdriverScrews (included)
Four steps
1

Remove the existing vent cover from the wall.
2

Measure the duct opening and confirm your size.
3

Set the new cover over the existing screw holes.
4

Drive the included screws — snug, not over-tightened.
Adjust the airflow. The two-way design spreads air in two directions. Use the damper to open, close, or dial the volume up and down.
Questions
Can I aim the air?
The direction is set by the two-way design. The damper controls the airflow volume and shuts it off.
Do I need to drill?
No — it uses the existing screw holes, and the screws are included.