The Elta 068‑0250-2DENP is a 2D long silencer with a 250mm diameter, designed to be bolted directly to a fan flange. Ideal for axial fan installations, this silencer delivers effective noise attenuation and helps eliminate cross talk in ducted systems. Its extended length enhances acoustic performance, while the unit remains compatible with both flexible and spiral ducting. This makes it an excellent solution for improving sound control in high-performance ventilation applications.