Completely enclosed drive compartment protects motor from airborne contaminants Forced fresh air through the motor compartment cools motor and ensures long motor life
DU-HFA

Completely enclosed drive compartment protects motor from airborne contaminants Forced fresh air through the motor compartment cools motor and ensures long motor life
Spun aluminum housing for rust-free, weather resistant durability. Standard bird screen. Non overloading backward inclined wheels, blades and inlets fabricated from aluminum.
Extremely quiet operation. Acoustically insulated housing. Integral back draft damper. Easily removable blower assembly.
Extremely quiet operation. Steel Construction housing. Integral back draft damper.
Extremely quiet operation. Steel Construction housing. Integral back draft damper.
Energy Star Rated EC Motor Built in Speed Controller Extremely quiet operation
Extremely quiet operation. Galvanized Steel Construction housing. Standard 4″ – 12″ round duct connections. Easily accessible junction box.
OSHA rear guard standard. Totally enclosed 115 volt motor. Built in shutter.
Steel propellers mounted directly on motor shaft All propellers are statically and dynamically balanced Heavy gauge G90 steel housing/frame construction
OSHA rear guard standard ODP & TEAO 115 & 230 volt single phase motors All motors are thermally protected