Utility Exhaust Blower, Type Belt Drive, Backward Incline, Less Drive Package, Wheel Dia. (In.) 11-1/8, Wheel Type Backward Inclined, Max. Inlet Temp. (Deg. F) 300, Max. Ambient Temp. (F) 104 Degrees, Bearing Type Ball, Shaft Dia. (In.) 3/4, Max. Blower RPM 3245, Housing Height (In.) 23-3/4, Housing Width (In.) 25-3/4, Housing Depth (In.) 20-1/8, Inlet Dia. (In.) 11, Discharge Height (In.) 23-3/4, Discharge Width (In.) 9-3/4, Wheel Material Spark Resistant Aluminum, Mounting Position Shaft Horizontal, Housing Material Steel, Housing Finish Gray Polyester Coating, Agency Compliance AMCA Air, UL/cUL 762, Includes Weatherhood (For External Mounting Only for UL 762).Dayton