... fan blade for 5HP heat pump water heater,22' fan 1. Propeller fan blades 2. Heater fan impeller 3. Plastic fan 556x167 ... fan blade for 5HP heat pump water heater,22' fan Outer Diameter: 556mmHeight:167mmShaft hole diameter:15mm ... , the pressure coefficient is high, good material, durability and other characteristics, it is air conditioner, air energy heatpump water heater, exhaust ...