Suitable for refrigerant system

Air Filter: Synthnetic removable and washable
Housing: Galvanized steel with high density foam insulation inside
Heat Exchanger: Copper tube and hydrophilic AL fins, built-in or external electric expansion valve(optional)
Drain Pan: High density polystyrene foam
Drain pump: 70cm head, with float switch and no return valve
Fan/Motor: Centrifugal fan, 3 speed motor or 5 speed motor
Control System: Main board, transformer, built-in electric control.