The Elta 018 – 315-DAMPER is a 315mm damper designed to effectively prevent reverse airflow in ventilation systems when the fan is not running. It features a robust galvanised sheet steel casing that ensures durability and corrosion resistance. The damper’s spring-operated aluminium blades provide reliable and automatic closure to maintain system integrity and airflow control. Ideal for use in various ventilation ducting applications, this damper supports efficient and safe air movement.