JKOVRME 4Inch Louvered Grille Cover Vent Hood Wall Air Vents - Stainless Steel Round Soffit Vents Ventilation Air Outlet (4Inch)
Brand: Bewox

The round air ventilation outlet is about 4inch, which is suitable for most round pipes or hoses with a diameter of 4 inch, also easy to install and remove.

Make of stainless steel, durable, and strong ability to withstand gravity.
Applied to 4" circular pipe/ducting hose/wall air outlet etc.
Mesh and 45° louver panel design can isolates some debris or some rainwater from entering the house.
Available for wall mounted or ceiling mounted.
Widely use in kitchen, bathroom, office, meeting rooms as exhaust vent, dryer vent.