LFHWHKJ Turbine Ventilator Vents,Stainless Steel Wind Rotating Turbine Cap Vent,Rainproof Unpowered Exhaust Fan,Thickened Attic Air Vent Ventilating Fan for Chimneys, Factory, Farm, Whirlybird(300mm/1

【Stainless steel 304 roof ventilator】: The wind-powered rotary turbine vent is made of thickened 304 stainless steel, with good processing performance, no rust, strong rainproof performance, high hardness and long service life. High temperature resistant, suitable for harsh environments, easy to clean. ️【Rotor roof ventilator】: The leakproof turbine ventilator blades are tight and firm, the stainless steel blades are arranged tightly, the wind is strong and does not leak, the galvanized bearing material, the wind speed strength is higher, the load-bearing pressure is greater, and it is not easy to be damaged and deformed. ️【Silent ventilation turbine】: The roof ventilation turbine runs silently when rotating. The encrypted blade gap is small enough to prevent rainwater from entering the ventilation system. It also prevents birds from entering. Excellent rotation performance, automatic operation, continuous silence, and low maintenance cost. ❄️【Container Ventilator】: The turbine ventilator uses the principles of natural wind and air convection to accelerate parallel airflow into vertical airflow, thereby improving indoor ventilation. 【House Roof Ventilator】: The attic ventilator has an extra-large waterproof base, which provides excellent leakage protection in severe weather conditions. It is very suitable for ventilation in factories, farms, production workshops, kitchens, roofs, houses, warehouses, stadiums, high-rise buildings and residential areas, ensuring a comfortable environment. 【Easy to install chimney caps】 Our store offers chimney caps in a variety of sizes. If you can't find the size you need in the list, please send me an email and I will help you. Note, no assembly required! ! ! External installation provides more freedom., Weight: 2.20462262 Pounds, Manufacturer: LFHWHKJ