Steinberg14 Black 100mm Air Vent Cover with Insect Mesh - 4 inch Round Air Vent Covers for Walls and Ceilings - Air Vents for Interior Walls - Plastic Ventilation Grille

Soffit Vents with an internal diameter of 99mm / 3.9 inch and external diameter of 126mm / 4.9 inch fit perfectly with 100mm / 4 inch ducting, providing ideal ventilation for residential, commercial, and industrial spaces Duct cover ensures excellent airflow and ventilation, promoting a fresh and comfortable atmosphere. Internal vent cover can be mounted as a wall vent cover, ceiling vent cover or furniture vent cover, providing versatile and efficient air distribution in any space Air vent covers for inside walls are made of high-quality, robust and durable plastic, which is perfectly suitable for rooms with high humidity level, such as bathroom, kitchens, garages, sheds, etc Louvre vent comes with a built-in screen mesh to keep big insects and other unwanted debris out of your space, ensuring a clean and comfortable environment Suitable for indoor use only, the ventilation grille features a sleek, unobtrusive design that enhances the aesthetics of any room and has pre-drilled mounting holes for easy installation