Mueller Industries is organized into two business segments:
Plumbing & Refrigeration – Manufactures copper tube, copper and plastic fittings and valves. These products are then sold to wholesalers in the plumbing, refrigeration and heating, ventilation and air conditioning markets as well to building material retailers.
OEM – Manufactures products and components that are sold to original equipment manufacturers of refrigerators, air-conditioning units and gas appliances.