8 Inch Stainless Steel Roof Wind Turbine Cap Vent - Round Rotating Roof Vents for Easy Installation - Improve Ventilation on Your Roof with Exhaust Cap Flue Vent - Unpowered Rotation Technology

Name: Roof VentilatorZero energy consumption:Utilizes natural wind and air-heat convection, driven by the temperature difference between indoor and outdoor air, to rotate the turbine. This creates centrifugal force and negative pressure to effectively exhaust stale air from the room.Material: 304 stainless steelSizes available: - Diameter 100mm/4in- Diameter 150mm/6in- Diameter 200mm/8in- Diameter 300mm/12in- Diameter 350mm/13.8in- Diameter 400mm/15.8in- Diameter 450mm/17.8in- Diameter 500mm/19.6in- Diameter 600mm/23.6inThe mounting nozzle is slightly smaller than the vent pipe for easy installation. Please refer to the dimensional drawings provided to select the correct size for your needs.Note: - Product measurements may have an error margin of 2-3cm due to manual measuring.- The color of the item may vary slightly from the picture due to differences in light and screen display.

• Material: Made of high-quality 304 thick stainless steel, galvanized support frame, high-quality ball bearings
• Features: zero consumption, zero noise, rainproof, rustproof, high hardness, corrosion resistance and long service life.
• Working principle: Using natural wind and air thermal convection caused by the difference between indoor and outdoor temperature, the turbine is driven to rotate, and the stale indoor air is discharged.
• Installation: The hood is equipped with two types of installation accessories, a clamp and a 90° fixed foot. Small sizes can be installed with clamps to prevent gaps, and large sizes can be fixed with 90° fixed feet.
• Application: Suitable for ventilation ducts, chimneys, farms, factory roofs, warehouses, etc.