Aluminum Tube and Fin Evaporative Cooling Coil Prices. FOB Price: US $ 50-80 / Piece. Min. Order: 1 Piece. Certification: ISO9001. Application: Heater, Cooler, Condenser, Evaporator. Principle: Mixing Heat Exchanger. Style: Steel Type. Tube Material: Copper, Aluminium, Steel, Stainless Steel Be Viabl. Fin Material: Copper, Aluminium, Steel,