Propeller, Replacement, Propeller Dia. (In.) 34 in, Bore Dia. (In.) 1 in, Number of Blades 6, Pitch (Deg.) 29 Degrees , Blade Material Spark Cast Aluminum, Keyway (In.) 1/4, Number of Set Screws 1, Rotation CW Facing Discharge, Required Motor HP 1-1/2, 3, 5, Required HP @ Higher RPM 5 hp, Required HP @ Lower RPM 1 1/2 hp, RPM Low 1,240 RPM, RPM High 1,750 RPM, Max. RPM 1750, CFM @ 0.000-In. SP 12,995/15,100/18,280, Blade Height (In.) 33 1/4 in, Blade Width (In.) 2 3/8 in