... for R134a, R22, R404a, R407c refrigerant and so on. Heat exchanger technical data sheet Series 1Series 2Series 3Series 4Series 5Tube Diameter ... Space(mm)21.652212.711.627.5Tube MaterialCopper, Aluminium Copper, Aluminium Copper, Aluminium CopperCopperType of TubeSmooth Tube, Inner Grooved TubeSmooth Tube ... with high quality products and perfect delivery date. finned copper tube condenser/heat exchanger