... 1. RoHS approved. 2. 5HP air conditioner fan blades propeller fan 556x167, axial impeller,air conditioner plastic fan blade CW Outer Diameter: ... high, good material, durability and other characteristics, it is air conditioner, air energy heatpump water heater, exhaust ventilation equipment, refrigerators/fridge and ... at any time. propeller fan 556x167, axial impeller,air conditioner plastic fan blade