Exhaust Ventilator, Exterior Mount, Fits Duct Dia 4 In, CFM @ 0.100-In SP 180, Voltage 120, 60 Hz, 1 Phase, Amps 0.84, Max Inlet Temp 140 Deg F, Housing Height 13 In, Housing Width 10 1/4 In, Housing Depth 6 In, Housing Material Galvanized Steel, Mounting Location Wall FantechAttach to any side wall or gable end of roof to keep noise away from living/working area. Max. inlet air temp.: 140 F. Paintable baked powder-coated finish on galvanized steel housing.CSA Certified. 6C511 is CSA-US Approved for use as a dryer booster fan; requires 4YM38 pressure sensing switch, see page 4481.Exterior-Mounted Exhaust VentilatorsRemove excess heat and odors via residential kitchen hoods.HVI Certified. UL and C-UL Listed.120V/60 Hz Motors: thermally protected Permanently lubricated bearings Speed-controllable