(19 PCS.)This brass adapter fitting is compatible with tubes and male straight pipes with a 3/8" diameter. With a quantity of 19 available, this fitting is suitable for various applications in the hydraulics, pneumatics, pumps, and plumbing industries. The material used in this fitting is durable brass, ensuring its longevity and resistance to corrosion. The straight coupling fitting shape and compression-to-pipe end make it easy to install and use. If you require a reliable and versatile adapter fitting, this brass P-68-66-LF-B10 tube to male straight pipe adapter fitting is an excellent choice.