White truma air flow outlet vent with adjustable throttle for 65mm pipe

6 Inch Adjustable Pipe Bracket, B Vent Wall Round Gas Vent Pipe Strap

Perma-Boot Pipe Boot Repair Flashing Adjustable 1.5 in. I.D. to 3 in. I.D. Vent Pipe in Black

Vent Systems

Vent Systems 4'' Inch Black Pack of 2 Air Vent Cover Dryer Vents and Bathroom Exhaust Vents Pipe, Black Louvered Dryer Vent Cover - Exhaust, Supply Air Register Grille with Flange

TroyStudio

TroyStudio  Air Vent Noise Reducer Foam Insert, Extended 4 Inch Exhaust Duct Silencer-Inline Return Airflow Ventilation Sound Damper Plug for HVAC Tube,Pipe,Air Conditioner,Bathroom Fan,and Grow Tent

Vent Systems

Vent Systems 4'' Inch Gray Air Vent Cover, Pack of 2, Dryer Vents and Bathroom Exhaust Vent Pipe, Louvered Outdoor Dryer Vent Cover Opening Flap Vent, Keeps Out Insects, Birds and Rodents