- Feature: 304 Stainless Steel: 7 slot louvered vent is made of high quality stainless steel, it is environmentally friendly and safe, rustproof and seawater resistant, durable in use. - Versatile in Use: Marine louver is perfect for indoor exhaust, ideal for ship vents and extractors, air conditioning units, kitchen fan vents, and so on to meet your various demands. - Excellent Performance: Professional 7 slots design, excellent noise reduction performance, and prevent rainwater and other debris from entering, more practical in use. - Easy to Install: The ocean louvered slotted ventilator is simple and durable in structure, just fix it with screws (not included) without modification or complicated operations. - Professional Production: Deliver approximate 382mm x 80mm / 15in x 3.1in size, undergone extensive quality and safety testing to ensure service life and strong durability.