
Toprise Wind Driven Roof Turbine Air Ventilator Wind Power Straight Vanes 900mm. Superior Exhausting Performance: Higher flow coefficients and larger exhausting capacity reduce the number of ventilators needed. Corrosion Resistant Material: Made from lightweight anodized aluminum alloy for long service life and anti-corrosion. Adjustable Varipitch Design: Adjustable to a wide range of roof angles ensures easier installation. Weatherproof Construction: Rain-proof and dustproof design protects the building interior effectively. Energy Saving Solution: Environmental protection and energy saving with smoke release and high temperature resistance. 2-Year Warranty Coverage: Comprehensive 2-year warranty provided for all mechanical equipment. Flexible Shipping Options: Available in CKD or half-assembled way to save space and shipping costs. Customization Available: OEM and ODM services available with customization from samples and designs.