
Ventilation Grille, 304 Stainless Steel Outlet Ventilation Grille (ø150mm) Material: This round air grille vent cover is made of 304 stainless steel. Diameter: ø100mm / 4", for all types of residential and industrial ventilation. Insect-proof: The upgraded thickened version with insect protection net effectively prevents insects and mice birds from entering. Weatherproof: Our vent cover is designed with a hemispherical hood. Wind and rainproof. Easy to install and durable. Application: Ideal for all dryer vent pipes/tubes, bathroom vents and extractors, as well as a variety of industrial applications