Columbia-MBF® EMT is precision manufactured from high grade mild strip steel for exceptional durability and longlasting life. Columbia-MBF EMT is hot galvanized using a patented inline Flo-Coat™ process. This process combines zinc, a conversion coating, and a clear organic polymer topcoat to form a triple layer of protection against corrosion and abrasion. E-Z Pull™ EMT combines strength with ductility, providing easy bending, cutting and joining while resisting flattening, kinking and splitting. Available in sizes 1/2 (16) - 4 (103).