Unlike the volcano in Sicily that shares its name, Etna Supply spews out water, not fire. The company distributes equipment and supplies for residential and commercial plumbing, hydronic heating, waterworks and sewage facilities, and fire protection. It operates through about 15 locations in Michigan, Indiana, and Ohio. The company also offers related services, such as custom pipe flaring and threading, welding, valve and hydrant maintenance, and meter reading. Customers include architects, engineers, contractors, and homeowners. Etna Supply was founded in 1965.