4'' Stainless Steel Air Vents, Round Louver Grille Vent Cover Wall Ventilation Outlet Soffit Vents with Built-in Screen Mesh for House (4 Inch)

4 INCH VENT COVER: This round stainless steel vent cover hood panel diameter 5.7 inch, bottom diameter 3.9 inch, height 1.8 inch, applied to 4 inch circular pipe, ducting hose, wall air outlet etc.. STAINLESS STEEL: This soffit air vent is made of stainless steel, sturdy for ventilation usage.. EASY INSTALLATION: Air vent is easy to install for wall, adjusting the regulating valve of soffit buckle on the vent cover side to prevent drop.. BUILD IN SCREEN MESH: Louver grille cover adopts build in screen mesh, it help isolate things to into your house.. HIGH COMPATIBILITY: The vent cover suits for indoor or outdoor using of house, such as kitchen, bedroom exhaust, office, school and so on.