Rotating Roofing Wind Turbines Rain Cap Vent Galvanized Roof Vents Stainless Steel 304 Chimney Cap 3.9/4.3/5.9/7.9/11.8/15.7/19.7inch (Size : 160mm(6.3in))

Stainless steel roof ventilator, unpowered hood, factory building, farm ventilation fan, simple installation, energy saving, easy to use【Product Name】Unpowered Vent Cap【Product material】304 stainless steel[Product model] 100mm, 110mm, 150mm, 160mm, 200mm, 250mm, 300mm, 360mm, 400mm, 450mm, 500mm[Product Usage] Exhaust, heat dissipation, moisture removal, rainproof, and backflow prevention[Product Usage] PVC pipes, roof flues, keel greenhouses, color steel tile roofs, concrete houses【Quantity】1 piece[Accessories] Clamps or fixed feet, glovesNote: Manual measurement, there may be slight errors.Wish you a happy shopping

• 【Unpowered hood】Ceilling Vent No need for various energy sources, it can effectively ventilate only by natural wind and save energy.
• 【Principle】Exhaust Covers Utilizes natural wind and natural air convection caused by indoor and outdoor temperature differences to push the turbine to rotate, thereby using centrifugal force and negative pressure effects to discharge stale indoor air.
• 【Large force, wind pressure resistance】Ventilating Cover Hood Strong enough to withstand 200 km/h wind speed, 100KG load pressure, no deformation, no damage
• 【Suitable】Ventilation Outlet Warehouse roofs, greenhouse roofs, workshop buildings, farm roofs, etc., made of 304 stainless steel thickened material, more sturdy and durable
• 【With accessories】Vent Cap For small sizes of 100mm-250mm, we carry clamps to fix them, and for 300-500mm, we carry fixed feet to fix them, making installation more convenient.