4/6/8/10″ Inline Duct Vent Blower Booster Fan 110V Ceiling Bathroom Ventilation
Also great used as intake fan to bring fresh air into grow rooms. 【UNIQUE DESIGN】–The duct booster fan adopts double-ball oil-impregnated bearings, which are permanently lubricated. With a seven-blade design, it achieves the effect of low friction and smooth air circulation, thereby realizing quiet operation of the extractor fan.
