Amazon.com: Hydrofarm ACBS6 Bug Fan Exhaust Screen, 6" Intake Shield, Black : Automotive
XB80 by Broan - Broan-NuTone® Steel Roof Cap for 6-Inch Round Duct with Backdraft Damper and Bird Screen, Black | Studio41
Amazon.com: Dryer Vent Grill Dryer Vent Screen with Aluminum Built Bird Guards Inserts Stop Variety Birds Nesting in Dryer Vents and Bathroom Exhaust Vents Outdoor, 3 Inch to 8 Inch (2 Pack) : Appliances
Hooded Wall Vent with Screen and Damper (8 Inch, Black) - Amazon.com
Zephyr Duct Round Exhaust Cap with Damper and Bird Screen for Range Hood AK00045 - The Home Depot
30 inch Galvanized Weather Hood w/ Birdscreen RH30– Industrial Fans Direct
Global Industrial™ Inlet Weatherhood With Birdscreen for 20" Exhaust Fan
XB80 by Broan - Broan-NuTone® Steel Roof Cap for 6-Inch Round Duct with Backdraft Damper and Bird Screen, Black | Studio41
24 inch Galvanized Weather Hood w/ Birdscreen GH-KD24– Industrial Fans Direct