COSTWAY 4'' INCH INLINE FAN HYDROPONICS EXHAUST FAN DUCT COOLING FAN STRONG CFM: Brand new PRODUCT DESCRIPTION Description: This is our professional inline fan, which can establish a superior air flow and be widely used in various environments such as hospital rooms, indoor growing rooms, commercial cooling and more. It features a superior aerodynamic body consisted of premium iron construction. The mixed blade design brings ventilation to a new level. This inline fan provides aerodynamically optimized airflow, quiet operation and extremely high efficiency. Features: Made of premium iron, strong and durable Commercial grade molded impeller Energy efficient and high performance, decrease power consumption and reduce power bills Quite operation with low decibel rating at 49 dB Compact and lightweight Comes with a fan mount and a Holster Apply for various environments such as hospital rooms, indoor growing rooms, commercial cooling and more Overall size: 11"Lx 9.3"W x 8.0"H Material:Iron;Outlet diameter:4'' Voltage:110/120V;Frequency:60Hz Power:87W Current: 0.78A Speed: 2500RPM Air Flow: 188CFM Noise:49dB Pressure:350Pa;IP Degree:44