Stainless Steel 304 Roof Wind s Cap Vent Roof Ventilator Non Power Chimney Cowl Attic Air Vent Outlet

The ran hood installed in the chimney mouth of the roof does not nerate energy but is driven by the wind and can rotate easily. The s the wind the faster it spins promoting faster air culat.Name: house chimney vent capMaterial: 304 stainless steel (internal plating)Funct: Ventilat Exhaust Ventilat Heat DissipatFeatures: zero ct zero noise rainproof rustproof high speed high hardness long service life prevents pipes from b blocked by nests and desize:110 mm (4.3 inches)150 mm (5.9 inches)200 mm (7.9 in)250mm (9.8")300mm (11.8")350mm (13.8")400mm (15.7 inches)pack:Vent hood x1Accessories: (110-250mm: 1 clamp 300mm: 3 fixed feet 350-400mm: 4 fixed feet)

• The turbo ventilator adopts the theory of convect between natural wind and air erates and converts any parallel airflow into veal airflow to improve indoor ventilat
• The ventilat system is strong enough to withstand 200km/h wind speed and 100kg load without deformat or dama.
• The roof ventilator is made of 304 stainless steel which is rust-proof weather-resistant non-deformable and has a smooth
• The top wind smoke extractor fan can be installed on a slope of 0-22.5 degrees flat or inclined as you like. easy to install
• Various sizes. For chimneys farms fac roofs commercial ventilat ducts houses warehouses residential buildings etc.