4 Blade, Interchangeable Hub, Condenser (Pressure) Type Fan BladeBlades: 4Rotation: ClockwiseDiameter: 22 InchesPitch: 27°0 Inches Static Pressure: CFM = 4840, BHP = 0.2830 Inches Static Pressure: CFM = 3640, BHP = 0.37Maximum RPM: 1140Typical Applications: Air-Conditioning Condensers, Power Roof Ventilators, Heat Pumps, Heat Exchangers, Unit Heaters, Industrial Equipment