1pcs 12 Inch Stainless Steel Roof Ventilator - Efficient Exhaust Cap for Optimal Airflow and Ventilation(300mm)

Stainless Steel Exhaust Cap, Wind Turbines Gas Vents, Louvered Grille Cover Vent Hood, for Ventilation and ExhaustProduct Name: Roof VentilatorMaterial: Thickened 304 stainless steelProduct Color: SilverProduct Specifications：110mm---400mmProduct features: no energy power, high speed, high precision, high density, rain and smoke backflow preventionProduct Principle: The use of natural wind and indoor temperature difference caused by Gas thermal convection to promote the rotation of the so as to use the centrifugal force and the negative pressure effect will be indoor not fresh Gas out.

• Durable 304 stainless steel construction ensures long-lasting performance and resistance to erosion, making it perfect for various environments.
• Utilizes natural wind and thermal convection to enhance Gas circulation, effectively expelling stale indoor Gas and preventing smoke backflow.
• Rainproof devise with curved wind blades prevents water intrusion, ensuring optimal performance in all weather conditions while maintaining a noiseless operation.
• Quick and easy installation with included mounting accessories, allowing for setup on gentle slopes without the need for special tools or assembly.
• Versatile vent connection sizes ranging from 4.3 inches to 15.7 inches, making it suitable for a wide range of applications including kitchens, workshops, and industrial plants.