ActronAir Fan Twin Deck 9x7 S 3/4HP ECM ELGEE is a twin-deck ECM assembly for AIRES and Advance R32 indoor units, featuring the ELGEE galvanised glass-polypropylene housing that resists the humid internal environment of the indoor unit better than earlier steel housings. The ELGEE composite construction reduces assembly weight while maintaining structural rigidity under variable-speed fan loads -- it is the standard housing specification on current AIRES and Advance R32 production units. Isolate power at mains before replacement -- live work on fan assemblies is dangerous and must only be performed by a qualified technician.