The Elta 068‑0630-2DENP is a 630mm diameter silencer with a 2D length, purpose-built for direct attachment to axial fan flanges. Designed to suppress cross talk and reduce duct-borne noise, it enhances acoustic performance in ventilation systems. This silencer is suitable for use with flexible or spiral ducting and is ideal for quiet, efficient airflow in a wide range of industrial and commercial applications.