Attic Armour Attic Fan Cover, Door Whole House Attic Ceiling Fan Shutter Seal Cover, Whole House Fan Cover, 129 * 129cm（50.79in）

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Premium Material: Made of aluminum film material, featured by good heat preservation effect. Good Sealing Effect: The sealing effect is good and can prevent any air leakage. Can be Trimmed: Can be trimmed to fit many different size openings. Easy to Install: There is a hook-and-loop on the back for easy installation and disassembly, no need to enter the attic. No Tools Needed: The fan in the attic can be covered and sealed in a few minutes without any tools. Effective Heat Preservation and Insulation: Attic insulation cover can be used all year round, completely preventing heat loss in winter, protecting your home from temperature drops and humidity, and excessive heating in summer. Attic ventilation covers can provide you with year-round energy saving insulation for optimal energy efficiency. Easy Installation: Insulation cover for ceiling shutter can be easily installed on any vent in the home without using any tools; Vent covers for home ceiling can be fixed to the ventilator from the outside without the need to enter the attic High Quality: The whole house fan insulation cover is made of high-quality aluminum foil foam insulation material, good insulation effect. Not affected by humidity, waterproof. Wide Applications: Attic vent cover for cold seasons suitable for living room, bedroom, study, dining room, bedroom and other places, suitable for any vent, can bring a lot of convenience to your life.