Propeller, Replacement, Propeller Dia. (In.) 12 in, Bore Dia. (In.) 5/16 in, Number of Blades 5, Pitch (Deg.) 24 Degrees , Blade Material Aluminum, Keyway (In.) -, Number of Set Screws 1, Rotation CW Facing Discharge, Required Motor HP 1/50, Required HP @ Higher RPM -, RPM Low -, RPM High -, Max. RPM 1550, CFM @ 0.000-In. SP 1000, 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.) 2 1/8 in