DUYULIANG Roof Wind Turbines Cap Vent Round Internally Braced Wind Turbines, 304 Stainless Steel Roof Ventilator Air Outlet, 4 10 12 Inch, Easy to Install Unpowered Rotation Rainproof Ventilator

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DUYULIANG Roof Wind Turbines Cap Vent Round Features

• ✔ Rotating chimney cap: made of thickened stainless steel material, will not rust, waterproof and durable, long service life. Easy to clean. Multiple sizes

• ✔ Practical: very effective in preventings sinking drafts and increasing ventilation. The rings of the chimney cap makes it impossible for wind to flow down the chimney, perfects solution to prevents sinking drafts

• ✔ Noiseless and rainproof: curved fan blades encrypted blades ensure that rain never intrudes during working condition. High exhaust efficiency Can run lightly. Protects your chimney from rain and moistures

• ✔ Operation principle: use the natural wind and air thermal convection caused by the temperature difference between indoor and outdoor to drive the turbines to rotate and exhaust the stale indoor air

• ✔ Variable angle neck pipe design: It allows the ventilator to be installed at will under 0- 22.5 degree slope, making the installation project very easy. Galvanized bearing: Its strength is strong enough to withstand 200km/h wind speed and 100KG load pressure without deformation and damage

About DUYULIANG Roof Wind Turbines Cap Vent Round

Stainless steel rotor, chimney rotating cover, antissinking chimney cover, rotating cover ventilation, no power energy saving, turbines ventilation --- Rotating cover for ventilation pipes, chimneys and air extraction. The protective gear provides a maximum protection without affecting the performance of the chimney. --- Easy to install: There is no need to assemble the turbines ventilation outlet, just take it out and install it where the need is needed. Including all installation accessories. --- stainless steel rotating chimney cover: The rotor antissinking air current is suitable for most standard chimney pots to prevents wind and increase ventilation. --- The hat is designed to rotate with the wind, so the more wind blows, the more the leaves rotate, and the strongers the wind from the inside out. Specification: Size: 110mm -4.3in, 150mm -5.9in, 160mm -6.3in, 200mm -7.9in, 250mm -9.8in, 300mm -11.8in, 400mm -15.7in Material: 304 stainless steel Package Contents: 1*Stainless steel top cover (with accessories)