Atlantic Blowers' ABAF-18-110E Single Phase Axial Fan can be used for various low pressure, high airflow applications. The ABAF-18-110E produces a maximum flow of 4414 CFM. The maximum pressure is 1.6 inH2O. The ABAF-18-110S has a power output of 1 HP (0.75 kW) with speeds of 1720 RPM (60 Hz). The voltage is 110V-120V. Measuring at a distance of 3 ft. the fan will produce a noise level of 70 dbA. The impeller diameter is 18".