The 1" PEX × 1" M/Sweat No Lead Brass Adapter by Mueller Streamline is perfect for connecting PEX to copper or other metal piping systems. Constructed from no lead brass, this adapter ensures safety for potable water applications. Its durable design allows it to handle high pressure and temperature, making it suitable for a variety of plumbing tasks. This adapter is easy to install and guarantees a secure, leak-free connection. Meeting ANSI and ISO standards, it is a dependable choice for both residential and commercial plumbing installations.