The Elta APK400SBCON/003 ancillary pack is specifically designed for 400mm ventilation system installations. This complete set includes four anti-vibration mounts to minimise noise and structural vibration, two flexible connectors for secure and flexible ducting, two matching flanges for accurate sealing, and two mounting feet to ensure solid unit placement. Ideal for commercial and industrial HVAC applications, this pack provides all the essential components needed for a durable and vibration-controlled setup.