Streamline is the leading name in smart and efficient flow control solutions. With a full suite of products for plumbing, air conditioning, refrigeration, and other applications, Streamline® piping systems set the benchmark for reliability and confidence. Manufactured by Mueller Industries companies using highest-quality materials and precision tooling, Streamline products provide the kind of assurance that only comes when a solution is designed to work together. Choosing Streamline means choosing strength, precision, reliability, and unmatched performance.