Deflecto Ubgbblk Universal Bird Guard For 4-In. Clothes Dryer Vent Or 3-In. Bath

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Easily installs over most any type 3-in. bathroom exhaust vent or 4-in. dryer exhaust vent;
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Helps prevent birds from nesting in vents and rodents from entering through vents;
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Self-cleans with wind or rain;
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Durable and weather-resistant;
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UV inhibitor added to hood to help prevent sun damage and cracking;
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Quick and easy installation;
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Removable for easier cleaning of vent;