50-200mm Wall Air Vent Cover, 304 Stainless Steel Rainproof Grille with Fixed Buckle for Outdoor Use – Features anti-rust and corrosion-resistant properties. Hemispherical design helps reduce airflow resistance. 45-degree angled louvers help prevent rainwater entry. Fixed buckle ensures secure installation. Constructed from 304 stainless steel for durability. Suitable for residential, commercial, and industrial ventilation applications. 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: - Color may vary slightly due to lighting and screen settings. - Slight measurement variations may occur due to manual measurement. - Edges are sharp; handle with care. - Wear gloves during installation. - Keep out of reach of children. Package Includes: 1 x Stainless Steel Vent Outlet