... Follow custom's design 3.Tube diameter:7MM,7.94MM,9.52MM,15.88MM 4.condenser ,evaporator coilSpecifications: ... (inner smooth or inner grooved): O.D. Φ 7, Φ 7.94, Φ 9.52, Wall thickness:t=0.320.36 Bare, ... , 36HolesL: 1800mm(max)Fin pitch:1.2 1.9Φ 7.9422×19.05equilateral triangle shapeV wave fin,Louver fin4R, ... : 1200mm(max)Fin pitch:1.2 2.0Φ 9.5225×21.65equilateral triangle shapeFlat fin, Slit fin, ...