Positive Displacement Blower, Configuration H-RHC, Inlet Size 2 1/2 in, Inlet Type NPT, Inlet Gender Female, Outlet Size 2 1/2 in, Outlet Type NPT, Outlet Gender Female, Displacement 1.4 cu in/rev, Maximum Operating Pressure 10 psi, Maximum Vacuum 16 in Hg, Maximum Speed 3,600 RPM, Minimum Speed 955 RPM, Maximum Air Flow 376 cfm, Minimum Air Flow 132 cfm, Maximum Power Required 20 hp, Minimum Power Required 3 hp, Shaft Diameter 7/8 in