4RU Vented Blanking Panels are ideal for filling a blank space in your rack while still providing ventilation. This vented panel is designed to help with air circulation to increase equipment performance and reliability. Features Fits 19" Racking Systems. Designed for servers, network gear, communications equipment and audio systems. Used between heat generating equipment to assist air flow. Helps maintain a dust free environment. Stylish, durable, strong and secure. Warranty 1 year limited warranty.