Replacement Propeller Propeller Dia (In.) 14 in Bore Dia (In.) 1/2 in CFM @ 0.000-In. SP 1 314 cfm CFM @ 0.300-In. SP 660 cfm Min HP 1/8 hp Max RPM 1 725 RPM Pitch (Deg.) 31 Degrees CW Rotation Number of Blades 3 Propeller Material Galvalume Galvalume Spiders For Use With Air Conditioning Condensers Heat Exchangers and Unit Heaters Heat Pumps Requires -