🦟 Keep the bugs out, let the fresh air in! Conveniently sold in a pack of 4 for all your needs. Designed to fit a 4-inch hole diameter seamlessly. Keep your space bug-free with our robust insect-proof design. Maximize ventilation with a generous 3.5 square inches of free area. Stylish white aluminum finish complements any decor. Insect proof 3.5 sq in airflow 4" size The Maurice Franklin Louver RLW-100 is a pack of four 4-inch mini round aluminum louvers designed to provide effective insect protection while ensuring optimal airflow. Each louver features a sleek white finish and fits a 4-inch hole diameter, making them a stylish and functional addition to any space.