50-200mm Anti-Rust Wall Air Vent Fixed Buckle Rainproof Polished Thickened Grille Ventilation Cover Exquisite and high-quality workmanship ensures anti-rust and anti-corrosion performance. The hemispherical design reduces air resistance for more efficient ventilation. The 45-degree inclined louvers help prevent rainwater from entering. The fixed buckle design provides stability and prevents displacement. Made of 304 stainless steel, this vent is durable and built for long-term use. Available in nine sizes: 50mm, 60mm, 80mm, 100mm, 120mm, 150mm, 160mm, 180mm, and 200mm. Suitable for residential, commercial, and industrial applications including homes, restaurants, supermarkets, and office buildings. Item Name: Stainless Steel Vent Outlet Material: 304 Stainless Steel Color: Silver Features: Fixed Buckle, Anti-Rust, Non-Slip Size Details: 50mm: Length: 12.5cm (4.92"), Width: 12.5cm (4.92"), Height: 10.3cm (4.06"), Punch Diameter: 5cm (1.97"), Installation Depth: 4cm (1.57") (Approx.) 60mm: Length: 12.5cm (4.92"), Width: 12.5cm (4.92"), Height: 10.3cm (4.06"), Punch Diameter: 6cm (2.36"), Installation Depth: 4cm (1.57") (Approx.) 80mm: Length: 12.5cm (4.92"), Width: 12.5cm (4.92"), Height: 10cm (3.94"), Punch Diameter: 8cm (3.15"), Installation Depth: 3.5cm (1.38") (Approx.) 100mm: Length: 14.5cm (5.71"), Width: 14.5cm (5.71"), Height: 11.3cm (4.45"), Punch Diameter: 10cm (3.94"), Installation Depth: 4cm (1.57") (Approx.) 120mm: Length: 14.5cm (5.71"), Width: 14.5cm (5.71"), Height: 12cm (4.72"), Punch Diameter: 12cm (4.72"), Installation Depth: 4.8cm (1.89") (Approx.) 150mm: Length: 18.5cm (7.28"), Width: 18.5cm (7.28"), Height: 14cm (5.51"), Punch Diameter: 15cm (5.91"), Installation Depth: 4.8cm (1.89") (Approx.) 160mm: Length: 19cm (7.48"), Width: 19cm (7.48"), Height: 15cm (5.91"), Punch Diameter: 16cm (6.3"), Installation Depth: 5.5cm (2.17") (Approx.) 180mm: Length: 22cm (8.66"), Width: 22cm (8.66"), Height: 17cm (6.69"), Punch Diameter: 18cm (7.09"), Installation Depth: 6cm (2.36") (Approx.) 200mm: Length: 22.5cm (8.86"), Width: 22.5cm (8.86"), Height: 17.3cm (6.81"), Punch Diameter: 20cm (7.87"), Installation Depth: 6cm (2.36") (Approx.) Notes: Due to lighting and screen settings, the actual color may vary slightly from images. Slight dimensional variations may occur due to manual measurement. The edges of the stainless steel vent are sharp; handle with care. Wear gloves during installation. Keep out of reach of children. Package Includes: 1 x Stainless Steel Vent Outlet