ActronAir Fan Blower 10x10 S 3/4HP ECM ELGEE H-Metal W-PVC is a 3/4HP ECM variable-speed blower for PCG290, PCG300, PCG330, and PCG340 commercial package indoor units, where the H-Metal W-PVC ELGEE housing construction provides the structural rigidity and condensate resistance required for continuous commercial duty cycles. The 3/4HP rating at 600W nominal provides higher static pressure capability than 1/2HP blowers, enabling the longer duct runs typical of commercial package system installations. Isolate power at mains before replacement -- live work on fan assemblies is dangerous and must only be performed by a qualified technician.