Built-In Junction Box For Easy Wiring
, Easy Removal And Installation Of Motor Assembly Key-Hole Mounting
, Galvanized For Humid Conditions And Various Attic Temperatures
, Gauge Markings For Sloan Ceiling Thickness
, Includes 4" Duct Adapter
, Polycarbonate Heat-Resistant Lens With U.V. Inhibitors
, Precision-Balanced Impeller For Quiet Operation