The Inline Centrifugal Duct Fan features high power motor and an aerodynamically designed shape. It is able to move air through long stretches of ducting, grow light reflectors or carbon filters. With a tape flange, it is rather convenient for you to place the ducting on the blower and tape it in place.High performances & static pressure to overcome the resistance caused by long ducting. Backward curved impeller to ensure quite operation possible. Moisture resistant great for use in damp environment. Extended collar and lip for easy duct hook-up. Solid metal construction with powder coated housing. Suitable for domestic, commercial and industrial applications. 1 x 4 Centrifugal Duct Fan. The item "CENTRIFUGAL FAN VENTILATION EXHAUST FAN 4/100MM VENT DUCT EXTRACTOR METAL BLADE" is in sale since Saturday, March 12, 2016. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Hydroponics\Fans, Filters & Environmental Control\Air Ventilation & Extraction". The seller is "bubblegrow" and is located in Carina, QLD. This item can be shipped worldwide.