Wind Turbines Air Vents,Roof Ventilator Dome Ventilator, Internally Braced Wind, Stainless Steel Vents, for Ventilation and Exhaust(11.8inch)

Dome Ventilator, Louvered Vent Hood, 304 Stainless Steel Air Vent, for Ventilation and ExhaustProduct Name: Dome VentilatorMaterial: 304 Stainless SteelProduct Color: SilverProduct features: The fan does not use electricity, no noise, can run for a long timePower: Natural wind powerEasy to install: All the hoods are shipped as a whole, no assembly required, comes with installation accessories, easy to install, just take it out and fix it.Working Principle: Using the natural wind and the air thermal convection caused by the difference between indoor and outdoor temperatures to push the to rotate, thus utilizing the centrifugal force and negative pressure effect to discharge the indoor unfresh air.Vent connection size: 4.3inch ,6.3inch ,7.9inch ,9.8inch ,11.8inch ,15.7inch

• Roof Ventilator: This chimney hood ring is specially designed to be very effective in wind and increasing ventilation, the hood rotates with the wind, the the wind, the faster the blades rotate, generating airflow from the inside out.
• Wind Turbines Air Vents: Made of 304 stainless steel, the finished product is sturdy and not deformed, the bearings rotate flexibly and smoothly, and the bracket is firmly fixed and durable.
• Ventilator: Can be installed at 0-22.5 degree slope, making the installation project very simple. Zinc-plated bearings: strong enough to withstand wind speeds of 200km/h and load pressures of 100KG without deformation or damage.
• Simple installation: All the hoods are shipped in one piece, no assembly is required, with mounting fittings, easy to install, just take them out and fix them.
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