Upgrade your ventilation and air conditioning systems with the AirTech-UK Flat Metal Fixed Grille. Designed for both residential and industrial use, this versatile grille can be mounted externally or internally and functions as an outside air brick with a built-in FlyScreen. Securely fixed with screws, it's the perfect solution for improved air quality and climate control. Enhance your ventilation and air conditioning setup with the AirTech-UK Flat Metal Fixed Grille. Whether for your home or industrial facility, it offers exceptional versatility, durability, and performance.