The Streamline #PF01150 Copper Press Fittings 4" Male Adapter Press x MPT is a high-quality plumbing fitting designed for use in various industrial and commercial applications. With a length of 4 inches, this adapter is made by the reputable brand Streamline and meets the California Prop 65 Warning standards for your safety. Perfect for hydraulics, pneumatics, pumps, and plumbing systems, this fitting provides a reliable and efficient connection for your piping needs.