As a manufacturer of fire hydrants, McWane is a friend to both firefighters and dogs. But fire plugs represent only a fraction of McWane's broad range of products. Orchestrated through six product groups, McWane's subsidiaries make a line of water distribution solutions including fire hydrants, cast-iron water and sewer pipes, fittings, and compressed air tanks. Its Amerex subsidiary is one of the world's largest makers of fire extinguishers. Subsidiary Manchester Tank makes pressure vessels, from huge propane cylinders to handheld torches. Its M&H Valve Co., a maker of industrial valves for wastewater equipment and fire hydrants, has operated since 1854.