Max cfm: 1020/1700m³h @ 0.1 sec contact time Recommended Min Airflow: 510 cfm Prefilter: Optional Flange: Optional, 8", 10" & 12" Dimensions: (with pre-filter) ·Outside Diameter: 420mm/16.5" ·Height: 1250mm/49.2" ·Carbon Weight: 42kg/92.6lbs. ·Carbon Bed Depth: 65mm/2.56" Max Operating Temp: 80ºC Pressure drop at max cfm: 100pa/ ,40wg