VENTS is a growing manufacturer of domestic ventilation fans and equipment. We offer one of the largest selection of accessories such as electrical controllers, electrical speed controllers, roof vent kits, ducting and ventilation accessories and boxed venting kits. We offer selection of high quality mechanical extract ventilation fans, heat recovery products, electrical heating systems and cooling products. The airflow operated gravity shutter is a rain and weatherproof vent finished in black colour. The item is made from premium quality plastic. The overall external dimensions of the grille - 185 mm x 185 mm with 6" 150 mm dia duct connection size for outdoor use. The grille has four non-return gravity flap outlets. The shutter works by extract air opening the blades to allow air to pass.
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