50-200mm Wall Air Vent – Fixed Buckle, Rainproof, Polished Stainless Steel Grille Ventilation Cover Precision-crafted with high-quality workmanship for rust resistance and corrosion resistance. Hemispherical design reduces airflow resistance for improved efficiency. 45-degree angled louvers help prevent rainwater ingress. Fixed buckle design ensures secure, stable installation. Made from 304 stainless steel for long-lasting durability. Available in nine sizes: 50mm, 60mm, 80mm, 100mm, 120mm, 150mm, 160mm, 180mm, and 200mm. Suitable for residential, commercial, and institutional applications including homes, restaurants, supermarkets, and office buildings. Item Name: Stainless Steel Vent Outlet Material: 304 Stainless Steel Color: Silver Features: Fixed Buckle, Rust Resistant Size Details: 50mm: Length: 12.5 cm (4.92 in), Width: 12.5 cm (4.92 in), Height: 10.3 cm (4.06 in), Punch Diameter: 5 cm (1.97 in), Installation Depth: 4 cm (1.57 in) 60mm: Length: 12.5 cm (4.92 in), Width: 12.5 cm (4.92 in), Height: 10.3 cm (4.06 in), Punch Diameter: 6 cm (2.36 in), Installation Depth: 4 cm (1.57 in) 80mm: Length: 12.5 cm (4.92 in), Width: 12.5 cm (4.92 in), Height: 10 cm (3.94 in), Punch Diameter: 8 cm (3.15 in), Installation Depth: 3.5 cm (1.38 in) 100mm: Length: 14.5 cm (5.71 in), Width: 14.5 cm (5.71 in), Height: 11.3 cm (4.45 in), Punch Diameter: 10 cm (3.94 in), Installation Depth: 4 cm (1.57 in) 120mm: Length: 14.5 cm (5.71 in), Width: 14.5 cm (5.71 in), Height: 12 cm (4.72 in), Punch Diameter: 12 cm (4.72 in), Installation Depth: 4.8 cm (1.89 in) 150mm: Length: 18.5 cm (7.28 in), Width: 18.5 cm (7.28 in), Height: 14 cm (5.51 in), Punch Diameter: 15 cm (5.91 in), Installation Depth: 4.8 cm (1.89 in) 160mm: Length: 19 cm (7.48 in), Width: 19 cm (7.48 in), Height: 15 cm (5.91 in), Punch Diameter: 16 cm (6.3 in), Installation Depth: 5.5 cm (2.17 in) 180mm: Length: 22 cm (8.66 in), Width: 22 cm (8.66 in), Height: 17 cm (6.69 in), Punch Diameter: 18 cm (7.09 in), Installation Depth: 6 cm (2.36 in) 200mm: Length: 22.5 cm (8.86 in), Width: 22.5 cm (8.86 in), Height: 17.3 cm (6.81 in), Punch Diameter: 20 cm (7.87 in), Installation Depth: 6 cm (2.36 in) Note: Color may vary slightly due to lighting and screen settings. Slight dimensional variations may occur due to manual measurement. Edges may be sharp—handle with care. Wear gloves during installation. Keep out of reach of children. Package Includes: 1 x Stainless Steel Vent Outlet