This compression tube fitting is made of stainless steel, and connects tubing to threaded pipe conforming to the National Pipe Thread (NPT) standard on a 90 degree angle. This coupling is for a fixed connection between tubing and pipe made of stainless steel. A twin ferrule compression fitting connects to tubing on one end for a leak-resistant seal in high-pressure, high-vacuum, and high-vibration applications, and a male NPT connector on the other end connects to threaded pipe. This fitting is made of chemically hardened stainless steel that provides higher strength and greater corrosion resistance than untreated stainless steel.