Master Flow 4 in. Aluminum Round Wall Vents are designed for use as the outside sidewall termination of kitchen and bath fans， range hoods， microwave venting， dryer exhaust systems or other needs (not included). These light， easy-to-install vents are made out of durable aluminum.
Foam gasket for a more quiet operation
Built in screen to prevent insect entry (Must be removed if using for Dryer Venting)
All aluminum construction
4 in. Diameter
Always seal exterior flashing to reduce leakage
Note: Product may vary by store.
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