Atlantic Blowers' AB-902 Three Phase/Double Stage Regenerative Blower can be used for various pressure or vacuum applications. The AB-902 produces a maximum flow of 230 CFM. The maximum pressure and vacuum is 201 inH2O and 177 inH2O respectively.The AB-902 has a power output of 8.5 HP (6.3 kW) with speeds of either 3000 or 3600 RPM (50/60 Hz dual frequency). The voltage is 220-275Δ/380-480Y with an FLA rating of 24.0Δ/12.0Y. Measuring at a distance of 3 ft. the blower will produce a noise level of 79 dbA. The inlet/outlet connection size is 2.00" female NPT.