Features 1、Marine Grade Material: Made of 304 stainless steel, rust and oxidation resistance, durable in the water environment and sea environment. 2、Practical Design: For covering wall or ceiling openings and duct vents. Flat surface reduces damage to vents as well as mooring lines, fishing lines. 3、High Reliability: Louvered vent has undergone a variety of performance tests, high strength, not easy to bend damage or fading, and long service life. 4、Overall Dimensions: The square vent is about 250mm long and 150mm wide. The installation aperture is 3mm. Easy to install and easy to use. 5、Wide Application: Stainless steel air vent can be used as a vent for different car models, suitable for boats, marine, yachts, caravans and homes Specification Item Type: Louvered vent Material: 304 stainless steel Size: Approx. 250x150mm/9.84x5.91in Aperture: Approx. 3mm/0.12in Application: Suitable for boats, yachts, caravans, house vents Package List 1 x Louvered Vent