March Manufacturing, also known as March Pump, is an American Manufacturer based near Chicago IL USA manufacturing centrifuga ... l sealless magnetic drive pumps and has been in business since 1954. The pump have a flow rate of under 1GPM to 200GPM. These pumps are made from a variety of materials, including Polypropylene, Kynar, Ryton, Stainless Steel, Bronze, and Cast Iron. The horsepower ranges from as small as 1/200HP to 10HP. read more