The Elta 068‑0250-1DENP is a 250mm diameter silencer with a length equivalent to one duct diameter (1D), designed to be bolted directly to the fan flange. Tailored for axial fan installations, it effectively reduces noise and prevents cross talk within ventilation systems. This silencer is compatible with both flexible and spiral ducting, providing a practical and efficient solution for enhancing acoustic performance in ducted fan applications.