The Phat Fan is an inline mixed flow fan capable of medium to high static pressure. This line of fans features aerodynamically optimized airflow, quiet operation, and extremely high efficiency. • Airtight housing offers streamlined performance while the sleek design offers quiet operation• Mixed flow impeller designed for high-flow operation• Extreme motor cooling for improved life performance• Super-efficient speed controllable motor to better adapt to individual needs• Motor safeguarded with thermal overheat protection• Stable mounting bracket offers easy installation• Energy efficient• Thermal overload protection NOTE: Not for use with fan speed controller (ACSC)