Single Inlet Blower Wheel, 3-13/16in Dia., CCW, 4500 RPM, 5/16in Bore, 2-1/2inW, Galvanized, Lau, Mfr#: 028957-71

single inlet blower wheels can be used to force air heated, cooled or ambient temperature to specific spot areas where moisture or some types of corrosives may destroy other alloys.