1TDU3-A OEM Blower, Wheel Type Forward-Curved, Drive Type Direct Drive, Assembly Assembled, Wheel Diameter 2 3/8 in, Airflow @ 0.000 in SP 77 cfm, Airflow @ 0.100 in SP 64 cfm, Airflow @ 0.200-In. SP 40 cfm, Airflow @ 0.250 in SP 14.6 cfm, Maximum Static Pressure 1/4 in wc, Maximum Inlet Air Temperature 104 Degrees F, Bearing Type Sleeve, Wheel Material C45 Carbon Steel, Housing Material C45 Carbon Steel, Wheel Width 4.5 in, Number of Inlets 1, Outlet Shape Rectangular, Outlet Height 1 in