Cgjdfjhe Silver Unpowered Wind Cap, Stainless Steel Exhaust Cap, 304 Wall Vent Hood, Thick Air, For Ventilation(7.9Inch(200Mm))
CGJdfjhE
Product material: Roof wind smoke evacuator is made of high quality 304 stainless steel, one-piece molding without deformation, smooth surface without sharp corners, curved wind blade with less wind resistance and smoother rotation. Vent connection size: 4.3inch(110mm) ,6.3inch(160mm) ,7.9inch(200mm) , 9.8inch(250mm) , 11.8inch(300mm) ,15.7inch(400mm) Simple installation: all the hoods are shipped as a whole, no need to assemble, comes with installation accessories, easy to install, just take it out and fix it. Working Principle: Using the natural wind and the air thermal convection caused by the difference between indoor and outdoor temperatures to push the turbine to rotate, thus utilizing the centrifugal force and negative pressure effect to discharge the indoor air that is not fresh. 304 stainless steel unpowered overhead turbine fan can realize automatic rotary ventilation, which is suitable for exhaust in workshops, warehouses, attics or flues., Manufacturer: CGJdfjhE
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