Flue Vent Cap Stainless Steel, Shed Roof Ventilator Cover, Outdoor Dryer Vent Cover No Noise & Rainproof, Chimney Cap Rotation Air Vent Outlet (Size : 100mm/3.9 in)

【No Noise & Rainproof】Roof vent turbine has no noise during spinning. Encrypted blade clearance is small enough to prevent rain from entering the ventilation . Also keeps out birds and rodents. 【Warm Tips】For better waterproofness, it is finally recommended to seal the outer gap between the turbine neck and the base with silicone, and clean the roof after installation. 【Stainless Steel】The roof turbine vent made up of thickened stainless steel material which will not rust, waterproof and durable. Also easy to clean. 【Rotary Chimney Cap】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. 【Easy to Install】The turbine vent is no need to assemble, you just take it out and install it where you need it. Including all installation accessories.