All tubes are CNC mandrel bent for optimal flow for all 45 degree bends with 6" legs. Made from 304 stainless steel for maximum corrosion resistance. The diameter of tubes is 2-3/8" with a .065 wall thickness. Smooth, wrinkle free bends are great for custom fabrication. These bends come with a lifetime warranty and proudly made in the USA.
All warranty questions, claims or otherwise should be directed toward the manufacturer, Dart.