$68.99 Upblast Roof Ventilator | Exhaust Fan | Hartzell Air Movement
DAYTON Upblast Ventilator, Gray Polyester Coating, Steel, Wheel Dia. 16 1/2 in, Shaft Dia. Wheel 
Centrifugal Upblast Exhaust Fan, Variable Speed, Model CUE-090, Direct Drive, Vari-Green EC 
