1,super strong corrosion proof ability 2,suitable for cooling:seawater aquarium salt solution corrosive solution Work Condition:1)Refrigerant side(In the tube): R22,R134a,R407c,R410a 2)Water side (Between the tube and PVC shell):Nature water,sea water,salt solutionother corrosive solution.Material:1)Heat transfer Tube: Thickness 0.5mm pure titanium tube.2)shell: PVC. Features:1)capacity:12500BTU ...