... mounting brackets -Pre-wired power cord This 6" Vortex Inline Duct Blower features high power motor and an aerodynamically designed shape ... ,Conference Room-.Kitchen exhaust:Range Hood-.Bathroom exhaust,Dryer booster,Duct booster-.HydroponicsMoror-.Extermal motor-.Voltage / Frequency:115v-120 60hz, ... (8" In-line fan)-.BIO-250-2SS(10" In-line fan)-.BIO-300-2SS(12" In-line fan) 4",6",8",10",12"duct Fan