KROS 500 is a high-quality round regulating damper with rubber gasket for efficient airflow control. Constructed from corrosion-resistant galvanized steel, suitable for 500 mm round ducts. Easy to install, suitable for high-volume airflow in commercial, industrial, and specialized HVAC systems.
NSK-T 500 - quick‑install ventilation flange is a high‑quality solution for connecting round air ducts or ventilation pipes to flat. Made from galvanised steel with a double rubber gasket – excellent airtightness and durability.