The Frigidaire FAD704DWD 70 pint dehumidifier compressor housing & base in gray color is the foundation of the dehumidifier components designed for whole house or whole room application. The compressor housing houses the compressor at rear and the water tank at the front. The top of the housing front side is a condensate drain and the fan assembly attaches at the rear. At the bottom are slide lock slots for easy attachment of 4 swivel caster wheels. The compressor housing is the foundation for support and attachment of the the dehumidifier subsystems. The durable ABS plastic construction makes it light but strong enough to support all the parts of the dehumidifier.