Bluestar International offers 45 Degree Male Elbow Fitting. Bluestar International is an ISO 9001: 2000 and ISO 14001:2004 accredited company supplying a wide range of instrumentation tube fittings, valve fittings, flanges and piping products. The 45 Degree Male Elbow Fitting is available in various tube diameter sizes ranging from ¬ inch to 1 inch and comes in various sizes and specifications to suit application in instrumentation and process control system tubing, double ferrule compression tube fittings and tubing lines.