4 Inch Roofing Rain Cap - Galvanized Steel Round Roof Vent Cover with Rubber Gasket Insulated - All Weather HVAC Exhaust Chimney Cap (4" / 100mm)
Ozo Brothers
Hon&Guan 6 Inch Removable Roof Vents Roof Dryer Vent Cap for Houses Galvanized Steel 6 Inch Exhaust Vent for Ventilation System-with Damper, Black.
Hon&Guan
Airknow Roof Vent Cap Removable Roof Vents for Houses,Steel Roof Dryer Vent for Ventilation System with Damper,Vent Cap for Bathroom, Black (8 Inch)
Airknow
Broan-NuTone 634 Broan Steel 3-1/4x 10" Roof Cap for 3-1/4 x 10 8-Inch Round Duct, 1
Broan-NuTone