I-Beam fans include pipes, u-brackets and hardware for I-beam flange attachment. Washdown fans include an enclosed permanently lubricated, PSC-type ball bearing, single-phase washdown motor that ensures long life and optimum performance in food service environments. Washdown rated fans feature double locking white epoxy coated steel wire guards that enclose 3 quiet aluminum fan blades for safety. Pivot-action fan head allows vertical tilt angle adjustments. Meets OSHA standards, and are UL listed. Beam mount fans include a junction box for hard wiring. 120 or 240V. 1 Year Limited Warranty.