... applications CE certificatedApplications:-.General Ventilation;House,Conference Room-.Kitchen exhaust:Range Hood-.Bathroom exhaust,Dryer booster,Duct booster-.HydroponicsMoror-.Extermal motor-.Voltage ... enclosure:IP44-.Class:B or FModel No.-.BIO-100-2SS(4" In-line fan)-.BIO-150-2SS(6" In-line fan ... " In-line fan)-.BIO-300-2SS(12" In-line fan) 4",6",8",10",12"duct Fan