Round Roof Turbine Ventilator House, Wind Turbine Flash Cap Vents, 110-300mm Diameter, Galvanized Steel All Weather Roof Vents (Size : 11.5)

[Nom du produit] Hotte non alimentée.[Matériau du produit] acier inoxydable 304[Caractéristiques du produit] Zéro consommation d'énergie, pas de rouille, zéro bruit et aucune fuite.

• Application: Suitable for chimneys, farms, factory roofs, ventilation ducts, warehouses, etc. 100-200mm does not require assembly, 300mm needs to be assembled by yourself (parts)
• Rotating chimney cover material: Made of 304 thick stainless steel, galvanized bracket and high quality ball bearings
• ♥Smooth surface: The curved blade baffle is neat and orderly, the edge lines are smooth and rounded, the polished surface design is maintenance-free and can be used for a long time
• ♥Ventilation and exhaust: As a deflector for smoke, it prevents smoke from flowing back into the room from the ventilation duct, exhausts indoor air, smoke and dry heat, and prevents the chimney from rain and moisture.
• ♥Zero energy consumption: Use natural wind to rotate it and generate vacuum/vortex in the channel where it is installed, sucking smoke and air from inside without any power loss and long service life