Air cooling Refrigerated Air Dryer Series (ADH5F-ADH1000F) Environmentally friendly refrigerant, high efficiency hermetic compressor and top brands of components. 2. More Compact Structure. Adopted with high-efficiency plate fin heat exchanger to achieve maximum heat exchanging efficiency.Maximum heat exchanging efficiency makes the product more smaller and saves space. 3. Lower pressure drop, less than 0.021MP 4. Easier installation; Small size,easy to install. Modularized combination enhances production efficiency 5. Fully automatic condensate drain valves for the lowest possible dew point under all rated design conditions - without freeze-UPS 6. Creatively "built-in and exposed" automatic drainer for fast, reliable condensate removal and easily maintenance.