Hooded Painted Wall Vent w/ Screen (No Damper) | FAMCO
IMPERIAL Commercial/Residential Intake/Exhaust Vent Cap (Max) in the HVAC Components department at Lowes.com
Broan NuTone Steel Wall Cap for 3- and 4-Inch Round Duct | UN 885BL | Destination Lighting
HVACQuick - Primex WCL Series Low Profile Intake and Exhaust Wall Caps
HEAVY DUTY PLASTIC WALL CAP 04" WITH DAMPER & SCREEN UV RESISTANT WHITE 25/CASE WC401S
Lambro 3.25 in. x 10 in. Aluminum Wall Cap 106R - The Home Depot
12" Aluminum Wall Cap - Item #588 | Lambro Industries
5 Inch Wall Vent Cap - Galvanized Steel - Damper Only - Heavy Duty Hooded Metal Caps for Exterior Side Wall Exhaust - Spring Loaded Backdraft Damper by Vent Works - Amazon.com
Hooded Wall Vent with Screen and Damper (8 Inch, White) - Amazon.com
Lambro 389G 8-In. Gray Plastic Wall Cap - Walmart.com
Broan 641 5-1/2 x 9 Inch Aluminum Round Duct Wall Cap | Cooper Electric