Roof Wind Turbines Cap Vent Round, Stainless Steel Exhaust Cap Roof Flue Vent 15.7" ~ 4.3" Air Vent Outlet Roof Ventilator, Easy to Install, Galvanized Bracket, Unpowered Rotation

Rotating chimney cap: made of thickened stainless steel material, will not rust, waterproof and , long service life. Easy to clean. Multiple sizes
Variable angle neck pipe: It allows the ventilator to be installed under 0- 22.5 degree slope as you like, and the installation works are very easy. Galvanized bearing: Its strength is strong enough to withstand 200km/h wind speed and 100KG load pressure without deformation damage.
No noise and rainproof: the curved fan blade encrypted blade can ensure that rain never intrudes under working condition. High exhaust efficiency Can run lightly. Protects your chimney from rain and moistures. Includes complete fixing kit for easy installation
Practical: Very effective in preventings sinking drafts and increasing ventilation. The rings of the chimney hood keeps the wind from flowing down the chimney, the perfect solution to prevents sagging drafts
Principle of : natural breeze and air thermal convection caused by the temperature difference between indoor and outdoor drives the turbines to rotate and exhaust stale indoor air
Rotating chimney cap: made of thickened stainless steel material, will not rust, waterproof and , long service life. Easy to clean. Multiple sizes
Variable angle neck pipe: It allows the ventilator to be installed under 0- 22.5 degree slope as you like, and the installation works are very easy. Galvanized bearing: Its strength is strong enough to withstand 200km/h wind speed and 100KG load pressure without deformation damage.
No noise and rainproof: the curved fan blade encrypted blade can ensure that rain never intrudes under working condition. High exhaust efficiency Can run lightly. Protects your chimney from rain and moistures. Includes complete fixing kit for easy installation
Practical: Very effective in preventings sinking drafts and increasing ventilation. The rings of the chimney hood keeps the wind from flowing down the chimney, the perfect solution to prevents sagging drafts
Principle of : natural breeze and air thermal convection caused by the temperature difference between indoor and outdoor drives the turbines to rotate and exhaust stale indoor air