This Fasco A163 blower accepts 115V, 60 Hz, 1.8 amp power input and is an OEM replacement for Lennox model 7021-9450 blowers. The 1/20 hp single-speed blower has ball bearing motor shaft support and rotates counterclockwise at 3,400 revolutions per minute (RPM). The 3.3" diameter shaded pole motor is thermally protected to guard against overheating. This centrifugal blower is Underwriters Laboratories (UL) recognized and Canadian Standards Association (CSA) certified for quality assurance.

Fasco manufactures blowers and motors for heating, ventilation, and cooling systems. The company, founded in 1911, is headquartered in Springfield, MO.