The 1" PEX × 1" F/Sweat No Lead Brass Adapter by Mueller Streamline is perfect for connecting PEX to female sweat fittings. Constructed from no lead brass, this adapter is compliant with safety standards for drinking water applications. Its durable design ensures it can handle high pressure and temperature, making it suitable for a variety of plumbing tasks. This adapter is easy to install and provides a secure, leak-proof connection. Meeting ANSI and ISO standards, it is a dependable choice for both residential and commercial plumbing installations.