Air vent made of 304 stainless steel, thickened, not easy to deform and not rust. 100mm hemispherical hood design, wind and rain proof, very easy to install and use, compatible with all 4 inch diameter ducts. This elegant steel wall extractor outlet port features a fine mesh to prevent insects co.ukom entering and a weather seal to prevent leaks and unwanted drafts. The interior design is in the shape of a grid and is angled at 45 ° to prevent rainwater co.ukom entering the pipeline. Ideal for all bathroom fans and extractors, kitchen fans and fans, range hood extractors, as well as for a wide variety of industrial uses. Features: Material: 304 stainless steel Diameter of circular pipe / pipe fitting: 100mm (4 ) Weight: 110g Product size: 14 x 9x 4 cm Products included: 1pc / 2pcs x Stainless steel ventilation grille Ideal use for: All tumble dryer ventilation pipes Bathroom Pipes, Vents & Extractors Air conditioning units Kitchen Fans & Vents All wall vents Heat transfer and