Designed Specifically for a 150x150mm / 6x6'' Size, Providing an Ideal Fit for Various Ventilation Openings | Provides Excellent Airflow and Ventilation, Promoting a Fresh and Comfortable Atmosphere High-quality ABS Plastic Construction Resistant to Weather Conditions, UV Rays, and Corrosion, Ensuring Long-lasting Performance Built-in Insect Screen, Effectively Prevents Insects and Other Unwanted Objects from Entering Your Space | Airflow Regulator Allows you to Adjust and Control the Amount of Airflow for Personalized Comfort Suitable for both Indoor and Outdoor Use, Providing Versatile Ventilation Solutions for Different Environments | Sleek and Unobtrusive Design Enhances the Aesthetic Appeal of any Space Easy Installation with Pre-drilled Mounting Holes, Allowing for Quick and Secure Attachment | Lightweight and Compact, Making It Convenient to Handle and Transport, Manufacturer: EUROPLAST