Atlantic Blowers' AB-401 Single Phase/Single Stage Regenerative Blower can be used for various pressure or vacuum applications. The AB-401 produces a maximum flow of 155 CFM. The maximum pressure and vacuum is 110 inH2O and 79 inH2O respectively.The AB-401 has a power output of 3 HP (2.2 kW) with speeds of either 3000 or 3600 RPM (50/60 Hz dual frequency). The voltage is 110-120Î”/220-240Y with an FLA rating of 30.0Î”/15.0Y. Measuring at a distance of 3 ft. the blower will produce a noise level of 75 dbA. The inlet/outlet connection size is 2.00" female NPT.