American Marsh
American-Marsh Pumps is a company that makes self-priming centrifugal pumps. It was originally called American Steam Pump Co., as they started out making steam pumps. They were the first company to market a centrifugal pump, and briefly forayed into making corliss-valved air compressors. The company focuses on the Industrial, Municipal, Commercial and Fire Protection markets. They also make irrigation pumps and pumps for fracking.