Single gang switch designed to control ventilation speeds. Allows switching between normal, boost, and purge modes. Provides easy manual operation for managing airflow settings. Standard Valve Available in Supply and Extract Suitable for 125mm duct connections Made from powder coated metal Ergovent Rondo Valve For both air supply and extract Suitable for 125mm duct connections Reliable magnetic holders hold up to 10.75 kg Ubbink Haelix Rondo Valve For both air supply and extract Easy adjustment with 9-step air flow restrictor Features a dirt deposit prevention flange View All Valves