Fan Blade, Spark Resistant, Propeller Dia 18 In, Blade Material Cast Aluminum, Number of Blades 4, Bore Dia. 5/8 In, Pitch 19 Deg, Motor HP 1/4, Motor RPM 1725, Rotation Facing Discharge CW, Number of Set Screws 2, CFM @ 0.000-In SP 2900, @ 0.125-In SP 2445, @ 0.250-In SP 2048, INCLUDES 2 Set Screws |