18 1/2 Wheel Diameter Centrifugal Belt Drive Downblast Ventilator

18-1/2" Wheel Diameter Centrifugal Belt Drive Downblast Ventilator, Less Motor (Motor Not Included), CFM Range: 2839 To 5677 @0.0 In Sp, Roof Mounting Location, Max Inlet Temp: 180° F, HP Range: 1/4 To 2, Wheel Dia: 18-1/2”, 730 To 1460 RPM Range, Wheel Material: Aluminum, Housing Material: Spun Aluminum, General Clean Air Application, Includes NEMA 1 Junction Box, Weight:85 Lb., Dims: H 36-3/4" X W 35-1/2" X D 35-1/2".