TRIMEC. We look forward to your visit. Do not hesitate to contact us if you have any questions. ✨ The vent acts as an external grille/cover to protect the ventilation duct. The brushed stainless steel ventilation grille is very weather-resistant and very robust. Rubber sealing strip for a perfect connection to the outer facade. Stainless steel mounting screws included. FUNCTION: The ventilation grille has a very high airflow. The vent protects against rain, cold air, and insects. The stainless steel grille adapts to all standard round and flexible ventilation ducts. VERSATILE USE Suitable as a termination for kitchen hoods, bathroom fans, exhaust fans, air conditioners, tumble dryers, living room ventilation, workshop ventilation, basements, offices, and industrial installations. PERFECT CHOICE for amateurs and professionals. Easy one-person installation with standard tools. Insert the cover into the ventilation pipe and attach it to the wall with the included screws. We are technical experts and we are here to help.