Reference Data Please click on the model to view the reference data:G2S-150 IN-Line Centrifugal Fan G2S-200 IN-Line Centrifugal Fan Industrial Exhaust Fan – A4S and A6S-SeriesA4S-300 – Curve 3A4S-350 – Curve 1A4S-400 – Curve 1A4S-450 – Curve 1A4S-500 – Curve 1 A6S-500 – Curve 3A4S-600 – Curve 1 A6S-600 – Curve 3