vents, 304 thick stainless steel air vent, wall mount exhaust covers, vent outlet, DIY easy connection kit, for ventilation

△TURBINE FAN - With thickened 304 stainless steel rotating fan cap, it is suitable for fireplaces, farms, factory roofs, ventilation ducts, warehouses, etc., which can effectively prevent wind and increase ventilation. △Ceiling fan: the round blades are densely arranged, the larger the size and the more blades, the greater the exhaust volume and the faster the air circulation, made of galvanized metal, very light and weather resistant. Can be easily and quickly installed in vacuum ducts. △ Ventilation connection size: 4.3 inches (110 mm), 6.3 inches (160 mm), 7.9 inches (200 mm), 9.8 inches (250 mm), 11.8 inches (300 mm), 15.7 inches (400 mm). △Easy to install: all hoods are shipped complete, no need to assemble, the chimney covers are very light and fast, come with installation accessories, easy to install, just take them out and fix them The latest ceiling fan on the market, easy to install and stylish to the eye