Silent-Prime Evo EC Mixed Flow Inline Duct Fan 8 inch Variable Speed 120 Volt 746 CFM 147671

All variable speed fans will run at a single speed unless used with a controller. See Highly Recommended Items for controller. Ruck Air Movement is a family business that specializes in the production of high quality solutions for the air conditioning and ventilation sector. In addition to a wide range of proven standard products such as Tube and Duct Fans, we attach great importance to the development of new ideas and specific customer solutions. Features: Sound insulated casing for silent operation Highest efficiency rates Incorporated Prime Evo EC mixed flow fan Powerful EC motor Galvanized sheet steel casing The S-Prime Evo EC is sound insulated for very sound sensitive applications  Advantages with an EC Fan Up to 90% higher efficiency, than the conventional motor technologies Future-proof, complies with and exceeds legal requirements Cost savings through reduced energy consumption, very short amortization time Quietest operation Integrated motor monitoring Easy speed control via