16-1/2" belt drive; less drive package, backward incline spark resistant blower, Wheel Dia: 16.5", Wheel Type: backward incline, Sones 0.750-IN SP 5 Ft: 9.812.214.317.820243, Max Inlet Temp: 300 F, Max Ambient Temp: 104 F, Bearing Type: ball, Shaft Dia: 1-1/4", Max Blower RPM: 2041, Mounting Position: shaft horizontal, Wheel Material: spark-resistant aluminum, Housing Height: 32-7/8", Housing Width: 34-1/4", Housing Depth: 31", Discharge Height: 32-7/8", Discharge Width: 12-3/4", Weight: 160 lbs, in bulk, made in USA