The Elta 068‑0150-JF4 is a 1200mm long silencer with a 150mm diameter, part of a compact metric range of attenuators built for small fan systems. It effectively reduces noise and helps eliminate cross talk in ductwork, making it ideal for quieter ventilation performance. With its spigot connection, the silencer can be easily installed with flexible or spiral ducting, offering a reliable and space-efficient solution for noise control in HVAC applications.