... etc. inner grooved or smooth tube.Aluminium foil: hydrophilic or bareFin type: louver fin, flat fin, corrugated finPitch of fins: ... Tube, Inner Grooved TubeSmooth Tube, Inner Grooved TubeSmooth Tube, Inner Grooved TubeSmooth Tube, Inner Grooved TubeFin SurfaceLouver Fin,Corrugated FinFlat Fin,Louver Fin,Corrugated FinFlat Fin ... and perfect delivery date. finned copper tube condenser/heat exchanger