Item Name: Ventilation Cover Specifications: Punching Diameter: 50mm, 60mm, 80mm, 100mm, 120mm, 150mm, 160mm, 180mm, 200mm Applicable Place: Home/Restaurant/Market/Office Features: Waterproof, Glossy Surface, Thickened Color: Silver Material : 201 Stainless Steel Manual : no Size Details: Punching Diameter: 50mm/1.97, 60mm/2.36, 80mm/3.15, 100mm/3.94, 120mm/4.72, 150mm/5.91, 160mm/6.3, 180mm/7.09, 200mm/7.87 (Approx.) Mounting Depth: 50mm, 60mm, 100mm: 40mm/1.57, 80mm: 35mm/1.38, 120mm, 150mm: 48mm/1.89, 160mm: 55mm/2.17, 180mm, 200mm: 60mm/2.36 (Approx.) 50mm, 60mm Size: 12.5cm x 12.5cm x 10.3cm/4.92 x 4.92 x 4.06 (Approx.) 70mm, 80mm Size: 12.5cm x 12.5cm x 10cm/4.92 x 4.92 x 3.94 (Approx.) 100mm Size: 14.5cm x 14.5cm x 11.3cm/5.71 x 5.71 x 4.45 (Approx.) 120mm Size: 14.5cm x 14.5cm x 12cm/5.71 x 5.71 x 4.72 (Approx.) 150mm Size: 18.5cm x 18.5cm x 14cm/7.28 x 7.28 x 5.51 (Approx.) 160mm Size: 19cm x 19cm x 15cm/7.48 x 7.48 x 5.91 (Approx.) 180mm Size: 22cm x 22cm x 17cm/8.66 x 8.66 x 6.69 (Approx.) 200mm Size: 22.5cm x 22.5cm x 17.3cm/8.86 x 8.86 x 6.81 (Approx.) Specifications: There are 9 specifications for you to choose from. The punching diameter is 50mm, 60mm, 80mm, 100mm, 120mm, 150mm, 160mm, 180mm, 200mm respectively. Thickened material makes the ventilation cover not easily deformed, and the fixed snap at the connection, which plays a reinforcing role, prevents it from falling off. Made of premium 201 stainless steel material, the air vent cover is anti-rust and has long service life. Designed with hemispherical shape and large air outlet, it can effectively reduce the resistance and achieve good ventilation and exhaust performance. There are dense filters and 45-degree inclined stainless steel louvers at the bottom, which effectively keep dust or other debris out. The ventilation cover is suitable for installing in the outside wall of home, restaurant, market, office building, etc. Notes: The edge area of the stainless vent is sharp, please be careful. Please wear gloves when installing.Please keep out of reach of children.Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Stainless Steel Ventilation Cover