Vent Systems 70 mm / 2.75" Inch Pack of 5 Brown Door Air Register Ventilation Grille Indoor Grates Bathroom, Cabinet, Garage Through The Cover

Flange diameter: 70 mm / 2.75" Inches. Outer grille diameter: 95 mm / 3.74" Inches. Flange length: 16 mm / 0.63" Inches. Prevents door slamming from the HVAC running. Significantly improves air circulation between rooms Allows the airflow to flow through the rooms, ensuring a balanced airflow. Includes insect protection net for additional protection. Easy installation, takes about 10 minutes. Requires pre-drilled ventilation hole. Material: Plastic. Color: Brown. Multiple colors and sizes are available. Package contains 5 pieces, Weight: 0.0661386786 pounds, Manufacturer: Vent Systems