Energy Transfer offers several different options to help provide stability and long life to our finned tubing. Collars can be used in high vibration and long tube length applications. Collars also reduce wear on fins that can lead to tube failure. Collars offered include cast-zinc, silicon, metal band, and packed fin. We can also place mid-bare sections (no fins) for customer supplied supports. Collars can be placed at any point throughout the length of the tube. Dimensional specifications are closely maintained to ensure proper fit.