1pcs Air Vent Louver. Upper Diameter: approx.11.4cm/4.49inch; Down Diameter: approx.13cm/5.11inch; Height: approx.10cm/3.94inch. Made of 201 stainless steel, hard and wear-resistant, anti-corrosion, anti-rust. Can be used for a long time without replacement.. Beautiful shape and wide application. It can be use for bathroom vents and extractors, air conditioning units, kitchen fans and vents, all home wall vents, gas and electric dryer etc.. The design of the grid and inclined shutters can effectively isolate some debris or rainwater, and at the same time prevent the pipeline from being blocked by debris..
