TPI PORTABLE BLOWER FANS 48" Direct Drive - Standard Base This TPI industrial fan features permanently lubricated single phase, 120V ball bearing type motors. Blower fans have corrosion and dent proof high density polyethylene housing. Includes spiral wire safety guards. 1-speed PSC type motor operates 2 aluminum blades. Features rocker power switch and 12'L SJT 3-conductor cord. This portable fan includes 8" rubber wheels and a pull handle on the housing. Meets OSHA standards. UL listed. 1 Year Limited Warranty. Horsepower rating based upon maximum speed/load.