About Seller: Established in 1859, Edson International is credited with inventing the diaphragm pump. The Edson pump division now produces a variety of pumps such as diaphragm, double diaphragm, peristaltic, and vacuum pumps. These pumps can be powered by electric, air, or gas. They are used in a wide range of applications from groundwater remediation to marine pumpouts. For inquiries regarding your specific application, please contact Edson International.