1,Small size ,safe and beautiful. 2,Suitable for cooling:seawater,aquarium chiller 3,Super strong corrosion resistant ability 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 0.6 mm pure titanium tube.2)shell: PVC.Features:1) ...