Vortex Powerfans VMF400 157 CFM 4" Inline Fan by Atmosphere is an in-line duct fan specifically designed to maximize the airflow performance with minimal noise levels in a small, compact housing. These fans incorporate a powerful mixed flow impeller and internal air vanes located at the discharge end of the fan housing. This impeller and guide vane combination provides a smooth laminar air flow which in turn minimizes turbulence and noise and generates an excellent air flow to static pressure performance ratio.

Quiet operation
Airflow capacity: 157 CFM
115VAC
RPM: 2400
Volts: 120
Rated Watts: 60
Max Amps: 0.85
Power cord included
Can be mounted in any position
Precisely balanced for vibration-free operation and longer life expectancy
Speed controllable
1-year warranty