ActronAir Indoor Evaporator Fan Deck 8x8 S 600W (PVC Housing) is the compact 8x8 fan deck for smaller Classic Series indoor units, featuring PVC housing construction that provides corrosion resistance in high-humidity or coastal installation environments where galvanised steel housings are prone to accelerated deterioration. The PVC housing is a specific design feature -- do not substitute a galvanised-housing deck from a larger model as the housing geometry and impeller-to-coil clearances will differ. Isolate power at mains before replacement -- live work on fan assemblies is dangerous and must only be performed by a qualified technician.