... approved. 2. 3HP heat pump fan blades fan for heat pump cooling 556x167x15, heatpump fan impeller ... , anti-vibration, good balance effect, the pressure coefficient is high, good material, durability and ... Ø450x155450mm155mmCCW12mm26Ø556x167556mm167mmCW15mm27Ø590x180590mm180mmCW15mm28Ø700x207700mm207mmCW20mm.................. fan for heat pump cooling 556x167x15, heatpump fan impeller, ...