Our backward impellers 220x45R are now replaced by new generation E-wheel impellers 220x43R.

Their blades are specially designed to:

• improve the ventilation efficiency and save energy
• improve the acoustic comfort

Please find below the replaced fans:

Former part number	New part number
D05-A5 2RRE25 220x45R	U24-C6 2RRE25 220x43R
K49-A5 RREG9 220x45R	U24-D3 RREG9 220x43R

The EC F5 is also available in this dimension:

T37- B6 RREF5 220x43 R