KROS 315 round heavy-duty galvanized steel regulating damper for precise airflow control in ventilation systems. Equipped with rubber gasket, manual adjustment. Suitable for 315mm round ducts. Easy to install and adjust.
KRTS-4 315 galvanized steel shut-off and regulating damper with sealing gasket – precise airflow regulation and complete shut-off for large HVAC ducts.
NSK-T 315 - 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.