DAYTON 16D522 Upblast ventilator Less Drive Package 11 1/4 roof vent
daton 16d522 downblast ventilator with slight damage from shipping seems not perfectly round cant hardly see it at all new unused  will not hurt the operation.
Technical Specs
ItemUpblast Ventilator Less Drv Pkg
Drive TypeBelt
Motor HP Range1/4 to 1/3
RPM Range1660 to 1820
Base Height1-3/4"
Base Length19"
Base Width19"
Overall Height25-1/8"
CFM Range1413 to 1549 @ 0.0" SP
Overall Dia.24-7/8"
Shaft Dia. Sheave End3/4"
Shaft Dia. Wheel End3/4"
Mounting LocationRoof
Max. Inlet Temp.300 Degrees
Housing MaterialSpun Aluminum
Wheel MaterialAluminum
Wheel TypeBackward Inclined Centrifugal
Wheel Dia.11-1/4"
IncludesNEMA 1 Junction Box
StandardsUL/cUL 762, AMCA Sound & Air