MADE IN THE USA! SpacePak is a hi-velocity central air conditioning system which utilizes a conventional outdoor condensing unit matched with the indoor Model ESP-J fan coil unit to provide conditioned air through the specially-designed, pre-fabricated, pre-insulated flexible duct system. The system and its basic components operate the same as in any conventional air-to-air cooling system. The many benefits of SpacePak include: Installation without major remodeling High efficiency cooling while removing 30% more humidity Whisper quiet operation Space-saving aesthetically pleasing installation Application flexibility - install outlets virtually anywhere