Fantech"s Versatile FR Series Fans Feature A Plastic Housing Constructed Of Ul-Recognized, UV-Protected Thermoplastic Resin. This Tough Protective Shell Allows The Fan To Be Mounted In Outdoor And Wet Locations.* Ideal For Multiple Point Exhaust, Dual Bathroom Exhaust, Or New Room Additions, Fantech"s FR Series Fans Are Caulked At The Motor Screws, The Wiring Cables And Along The Seams Of The Fan To Prevent Moisture From Entering The Housing. Fantech"S Fr Series Fans Have Long Been The Choice Of Residential Builders And Remodelers But Now Can Be Used For Commercial Projects With Our Recent UL Commercial Applications Rating An in Line Duct Fan, Made of An Engineered Thermoplastic Resin Ul Listed For Outdoor Use or in Wet Locations. Direct Drive External Rotor Motorized Impeller Assembly. True Airfoil Backward Curved Wheel. Installs in Any Orientation.4 - 10 " Duct Diameters, 108 - 563 cfm Feature and Specification Prewired and Supplied with A Mounting Bracket For Easy Installation Available Singularly With Bracket or in A Variety of Kits For Specific Applications Each Kit Includes The Appropriate Fan and Accessories Tested and Approved By Ul and CSA (or Equals) Approved For Residential and Commercial Applications and For Wet Locations Suitable For Airstream Temperatures Up to 140° F Easy Connection Using External Wiring Box With Waterproof Gasket 122-649 CFM 4" to 10" Duct Diameters 100% Speed Controllable Five-Year Factory Warranty ABS-PC Blend Thermo Plastic Housing Powered by ebm-papst External Rotor Motorized Mixed Flow Impeller Permanently Lubricated Sealed Ball Bearings 100% Speed Controllable Automatic Reset Thermal Overload Protection Prewired Electrical Box Exhaust Duct Diameter: 4 UV Protected Thermoplastic Resin Electrical Specifications: 115 Volt, 0.18 Amp, 2900 RPM, 19 Watt, 122 CFM