Roof Vent Cap Attic Fan, 4" 12" 16" Wind Rotating Turbine Cap Vent, 304 Stainless Steel Turbine Ventilator Vents, Rotating Roof Vents Chimney Cowl(100mm/3.94in)

Rotating turbine ventilator vents: Roof wind turbines cap vent is made of 304 thick stainless steel material, thick and wear-resistant, it will not deform even when bearing a weight of 100 kilograms; Galvanized rollers can rotate flexibly and have strong compressive performance Features: unpowered exhaust vent cover, zero energy consumption, zero noise, rain proof, rust proof, high hardness, long service life Indoor ventilation: Non powered rotating wind roof ventilators can be installed with rotating turbines in areas with poor air circulation on the roof. Equipped with a durable ball bearing base, it operates silently and quietly Easy installation: The exhaust cap roof flue vent is equipped with two types of installation accessories, namely clamps and 90 ° fixing feet. Small sized models can be installed with clamps to prevent gaps, while large-sized models can be fixed with 90 ° fixing feet Applicable scenarios: Roof wind ventilation fans are suitable for ventilation ducts, chimneys, farms, factory roofs, warehouses, and other places, Manufacturer: Qianfeng's Store