Mueller Streamline Co. is a company of Mueller Industries, Inc. that provides products supporting the plumbing, HVAC, refrigeration, PVF, and other markets. Headquartered in Collierville, TN, the company’s flagship products are Streamline® copper tubing, line sets, copper fittings, valves, and related items. Mueller Streamline Co. also sells other Mueller Industries companies’ brands, representing a wide assortment of products such as refrigeration valves, HVAC/R protection devices, brass flare fittings, iron fittings, steel pipe, plastic tubing and fittings, plumbing valves, plumbing specialties, and more.