Max cfm: 412/700m³h @ 0.1 sec contact time Recommended Min Airflow: 206 cfm Prefilter: Optional Flange: Optional, 6" & 8" Dimensions: (with pre-filter) ·Outside Diameter: 305mm/12" ·Height: 660mm/26" ·Carbon Weight: 14.5kg/31.9lbs. ·Carbon Bed Depth: 50mm/2" Max Operating Temp: 80ºC Pressure drop at max cfm: 180pa/. 75wg