The Soler and Palau DEF-400 T compact in/out guard is a safety accessory designed for use with 400mm cased axial fans. It provides effective protection for both the fan unit and surrounding environment while ensuring airflow performance is maintained. Built from durable materials, the DEF-400 T offers long-lasting reliability in commercial and industrial ventilation systems. Easy to fit and designed to meet safety requirements, this guard is an essential component for achieving safe and secure fan operation.