the aluminum finned tube still has a strong role in the market because not every system is optimized for extreme compactness. CHAL describes finned tubes as traditional round tubes with external fins that are easy to clean, resistant to fouling, mechanically robust, and suitable for dusty or corrosive environments. In larger HVAC installations, industrial coolers, and service-oriented systems, these traits can outweigh the compactness advantage of a microchannel design
https://www.chaluminium.com/al....uminium-tube/alumini