? ?High quality material?: 316 stainless steel vent, polished surface, corrosion resistance, sturdy and durable in use, material thickness 1.0mm. Made of high quality stainless steel, environmentally friendly, safe, sturdy and durable in use. ? ?Adjustable ventilation?: Less noise, our supply air can be used to extract indoor spaces. Suitable for heating or ventilating a boat, mobile home or caravan, adjustable ventilation, fresh air exchange as needed. ? ?Stylish and easy to clean?: Simple design, fashionable appearance, fine workmanship and excellent quality. Can be perfectly installed on the ceiling or wall and is also very easy to dismantle for easy cleaning. ? ?Wide range of applications?: Adjustable ventilation grill for grill and smoker professionals, sailors, campers and e.g. anyone who needs adjustable ventilation, e.g. barrel grill, fire barrel, smoker, incense barrel, boat, mobile home and many others. ??Quality service?: If you are not satisfied with the product you