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 with a 45-degree inclined louver for optimal airflow management. 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 enhance indoor air circulation Quick release buckle designed on the side for easy installation and to prevent falling off Usage The air vent grille is ideal for various applications, including bathroom vents, exhaust fans, air conditioners, kitchen fans, gas vents, and other wall vents. It helps