Wall Or Ceiling Round Louver Grille Cover with Built-in Screen Mesh, 3 Inch ~ 8 Inch 304 Stainless Steel Round Soffit Air Vent, Fresh Air Intake Vent for HVAC Ventilation

304 stainless steel vents combine durability, corrosion resistance, high-efficiency ventilation, rainproof, backflow-proof, and anticlogging features. Available in multiple sizes and colors, suitable for both residential and industrial use.✅ Product introduction- Product name: Exterior wall vents, duct vent covers, stainless steel air outlet hoods- Material: 304 stainless steel- Color: black, white, gray, yellow-Uses: Kitchen range hood exterior wall smoke exhaust, bathroom exhaust heating and ventilation, fresh air system outdoor air outlet, roof natural ventilation ducts, industrial factory and warehouse exhaust systems✅ Size- 70mm ( 2.75in )丨Applicable hole diameter: 70 - 75mm ( 2.75 - 2.95in )- 80mm ( 3.14in )丨Applicable hole diameter: 77 - 85mm ( 3.03 - 3.34in )- 100mm ( 3.93in )丨Applicable hole diameter: 99 - 105mm ( 3.89 - 4.13in )- 120mm ( 4.72in )丨Applicable hole diameter: 118 - 125mm ( 4.64 - 4.92in )- 150mm ( 5.90in )丨Applicable hole diameter: 148 - 155mm ( 5.82 - 6.10in )- 160mm ( 6.29in )丨Applicable hole diameter: 158 - 165mm ( 6.22 - 6.49in )- 180mm ( 7.08in )丨Applicable hole diameter: 176 - 185mm ( 6.92 - 7.28in )- 190mm ( 7.48in )丨Applicable hole diameter: 188 - 195mm ( 7.40 - 7.67in )- 200mm ( 7.87in )丨Applicable hole diameter: 197 - 205mm ( 7.75 - 8.07in )- Please refer to the size chart in the picture for detailed dimensions✅ Installation methods- Ready to use after embedding (glass glue can be used to reinforce the connection with the wall)✅ Package contents- Stainless steel vent * 1

• 【Made of 304 stainless steel with high-temperature baking paint process】Durable, rust-proof, and corrosion-resistant, it can withstand outdoor wind, rain, and oil fume erosion for a long time. It is not easily aged or deformed, suitable for both indoor and outdoor use, and has a longer service life.
• 【Three air vents + widened airflow louver design】Increases ventilation area and reduces wind resistance, resulting in smoother airflow. It can quickly removes oil fumes, moistures, and exhaust gases, effectively improving the problems of poor ventilation and easy clogging of traditional vents.
• 【Button-style appearance, bottom opening + louvers + built-in filter】Rainproof, windproof, and backflow-proof, preventings rainwater, snowmelt, mosquitoes, and birds from entering the duct, keeping the duct and indoor environment clean and tidy.
• 【Available in multiple sizes from 70–200mm and four colors: black, white, gray, and yellow】Compatible with various ducts such as range hoods, fresh air systems, and bathroom exhaust fans. Simple installation, with secure clips that are not easy to fall off.
• 【Wide Range of Applications】It can be used in kitchens, bathrooms, storage rooms, warehouses, garages, etc., to meet the exhaust needs of both household and industrial use. It can be installed on walls or ceilings, making it both practical and aesthetically pleasing.