Lambo Universal 4 In. Plastic Pest Barricade Vent Guard - 1 Each - 4 In.
$18.45
Keeps pests from burrowing in exhaust vents. Hinged access guard for easy cleaning. Fits over most 3 In. and 4 In. exhaust vents. Size: 4 In. \nMaterial: Plastic \nColor: White \n