S-Line Mixed Flow Fans are designed for residential and light commercial ventilation applications. These compact, powerful, and quiet fans are available in 6 in., 8 in. and 10 in. duct diameters and are ideally suited for either supply or exhaust ventilation systems. The fan and motor are precisely balanced for a quiet and vibration-free operation. This Vortex Powerfan kit includes a 340 CFM S-600 inline blower, for 6 in. duct diameter, and a current sensor that will automatically turn on and off the Vortex Powerfan S-600 inline blower as required. Design features: Powerful, compact and quiet mixed flow impeller Easy to install - mounting brackets included 100% speed controllable May be mounted in any position Suitable for airstream temperatures up to 140°F (60°C) Prewired with 120V power cord Fan and motor are precisely balanced for a quiet and vibration-free operation ETL listed AMCA air listed 10-year warranty FREE SHIPPING