A black rotatable vent cover is an adjustable, round or rectangular airflow grille featuring a 360-degree rotating center or adjustable louvers. Twisting the cover lets you open, close, or redirect airflow. These vents are commonly made from durable ABS plastic or aluminum and are used in homes, vehicles, boats, and RV heating or cooling systems.

Easy Clean 

Indoor/Outdoor ventalation system 

7.62 cm 

Black 

HVAC and Wall Vents: Circular flush-mount vents used on walls, ceilings, or soffits to control room airflow.
RV and Automotive Vents: 360-degree directional vents for dashboard AC units, camper heating ducts, or rooftop plumbing/sewer stacks.
Furniture and Cabinet Vents: Small louvered or mesh-backed rotating inserts to prevent moisture and mold buildup in enclosed spaces.

Adjustable Flow: Spin the faceplate or middle dial to raise, lower, or completely shut off air volume.
Easy Fit: Standard diameters typically range from 40mm up to 150mm (approx. 1.5 to 6 inches) depending on duct size.
Simple Install: Most models snap into place, use pre-drilled screw holes, or mount directly onto matching tubing.