Galvanized Steel – 12/14/16/18/20 Gauge Stainless Steel – 16/18/20 Gauge * 304 is standard * 316 will be a special order Aluminum – .063″ & .090″ Brass – 14 Gauge Flange – Slip & Drive, Stack, and others
Expanding
All coils are mechanically expanded to achieve a tight fin-to-tube bond for optimal heat transfer.
Fin spacing ranges from 5 fins per inch up to 16 fins per inch. (Note that thicker aluminum is required for larger FPI)