... diameter:15mm or customers' requirement. Product photos: fan for heat pump cooling 556x167x15, heatpump fan impeller,outdoor fan blade 556x167 ... .5415mm124.5mmCW8mm24Ø440x150440mm150mmCCW12mm25Ø450x155450mm155mmCCW12mm26Ø556x167556mm167mmCW15mm27Ø590x180590mm180mmCW15mm28Ø700x207700mm207mmCW20mm.................. fan for heat pump cooling 556x167x15, heatpump fan impeller,outdoor fan blade 556x167 ...