US Fan Direct Drive Down Blast Roof Exhaust Fan 1075 RPM .33 HP 120 Volts, 1 Phase
Model: U PRN171F-3-1075 RPM-.33HP-120V-1PH
Low Price: $926.31

US Fan Direct Drive Down Blast Roof Exhaust Fan 1075 RPM .33 HP 120 Volts, 1 Phase

By: US Fan Model: U PRN171F-3-1075 RPM-.33HP-120V-1PH ID: 19718

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Low Price: $926.31
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Model PRN direct drive fans are centrifugal power roof ventilators designed for exhausting clean air. This model has a max CFM of 2,770. The PRN is a downblast exhauster suitable for all types of commercial and institutional buildings such as schools, hospitals, office buildings, and retail stores.


  • Hoods constructed of heavy gauge aluminum, die formed with rolled bead for strength
  • Curb base and inlet are one piece with continuous welded corners
  • Steel fasteners are zinc dichromate plated
  • Heavy gauge galvanized wire birdscreen
  • Heavy gauge corner support brackets transmit motor and impeller weight to curb base
  • Conduit post for ease of electrical wiring

Airfoil Centrifugal Wheel

  • Aluminum construction with backward curved hollow airfoil blades
  • Non-overloading design for safe operation
  • Precision balanced for smooth vibration free operation


  • Continuous duty motors located outside the airstream
  • Motor compartment is ventilated by a "forced air" cooling system
  • Factory wired with polarized disconnect plug (except explosion resistant motors)


Additional Information

SKU U PRN171F-3-1075 RPM-.33HP-120V-1PH
Manufacturer US Fan
Drive Type Direct
Maximum CFM 2770
Sone 15
Wheel Size 17"
Motor RPM 1075
Horsepower 0.33
Horsepower .333 HP
BHP .328
Curb Cap Size 24 x 24"
Weight (in lbs) 83.0000
Warranty 2 Year Comprehensive Warranty
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