Vents Ventilator, Roof Ventilator, Internally Braced Wind, Stainless Steel Exhaust Cap, Wall Air Ventilation Outlet Hood, DIY Easy Vent Hookup Kit, for Kitchen Bedroom Bathroom Office Etc(4.

Roof wind exhauster is made of 304 stainless steel, high exhaust efficiency, lightweight operation, rainwater intrusion, no need to assemble the vent, just and install it to the desired locationProduct Name: VentilatorMaterial: Thickened 304 stainless steelProduct Color: SilverProduct Specification: 110mm---200mmProduct features: no energy power, high speed, high precision, high density, rain and smoke backflow preventionProduct principle: the use of natural wind and indoor temperature difference caused by air thermal convection to promote the rotation and thus the use of centrifugal force and negative pressure effect will be indoor not fresh air out.

• Galvanized rollers: The galvanized rollers are flexible, durable and pressure-resistant enough to withstand wind speeds of up to 200 km/h and loads of up to 100 kg without deformation or damage. Curved fan blades ensure that rainwater never intrudes under operating conditions. High exhaust efficiency, lightweight operation and protection from rainwater intrusion.
• Material: The Roof Wind Smoke Evacuator is made of 304 stainless steel, which is thick, wear-resistant and hard. It will not be deformed even when it is subjected to a weight of 100 kilograms.
• Easy to install: the vent does not require assembly, simply and install in the desired location. 110-200 mm vents can be installed with lifting rings to gaps; vents can be fixed with fixing feet.
• Hood size:4.3inch(110mm), 6.3inch(160mm), 7.9inch(200mm),
• Wide range of applications: farms, machinery factories, roof chimneys, industrial plants, production workshops, kitchens canteens farming, workshop ventilation, tile houses, flue smoke exhaust and other areas