General description The Promotion Air Vent Grille is a round air vent designed for effective ventilation while preventing unwanted pests from entering your home. Made from high-quality 304 stainless steel, it features a waterproof and rustproof design, ensuring durability and a long service life. The louver is inclined at a 45-degree angle to prevent rainwater from entering, making it suitable for various indoor applications. Technical specifications Type: Louver with screen mesh Material: High-quality thickened 304 stainless steel Color: Silver Size compatibility: Suitable for round pipes with diameters of 100mm, 130mm, 150mm, 160mm, 180mm, and 200mm Installation Easy to install on ceilings or walls by adjusting the regulating valve of the round louver grille cover. Can be installed on exterior walls to maintain indoor air circulation. Features a quick release buckle for easy installation and to prevent falling off. Usage The air vent grille is ideal for various applications,