Propeller, Replacement, Propeller Dia. (In.) 7 3/4 in, Bore Dia. (In.) Hubless, Number of Blades 5, Pitch (Deg.) 40 Degrees , Blade Material Aluminum, Keyway (In.) -, Rotation Clockwise Facing Discharge, Required Motor HP 1/185, Required HP @ Higher RPM -, RPM Low -, RPM High -, Max. RPM 1,550 RPM, CFM @ 0.000-In. SP 275 cfm, CFM @ 0.125-In. SP -, CFM @ 0.250-In. SP -, CFM @ 0.375-In. SP -, CFM @ 0.500-In. SP -, Blade Height (In.) -, Blade Width (In.) 1 5/8 in