3003 Extruded Heat Exchanger Zinc Coating Aluminum Microchannel Flat Tube for Auto Evaporator

The Micro-channel coil design is based on technology from the automotive industry. It is constructed of parallel flow aluminum tubes that are mechanically brazed to enhanced aluminum fins, resulting in better heat transfer and a smaller, lighter, corrosion-resistant coil.

Other manufacturers use copper tubes with aluminum fins or spiny fin coils which are aluminum tubes with spiny fins tightly wrapped around them. Both of these designs result in a larger coil that is much easier to damage and both require twice as much refrigerant. The aluminum fins in both of the above designs are delicate and very hard to clean without causing damage.