Blauberg Standard Sub Floor Ventilation Kit 4 - Up To 200m3 | 2 x IntakesEnsure optimal airflow and moisture control in large subfloor spaces with the Blauberg Standard Sub Floor Ventilation Kit 4. Engineered for Australian conditions, this high capacity underfloor ventilation fan kit is built around the powerful 250mm Blauberg Turbo Mixed Flow Fan and features a dual intake system, allowing efficient extraction of stale, damp air across wide or complex subfloor zones. With its 1400 m3 h airflow and expanded ducting