FTI AIR is the latest invention from the talents and ambitions of Finish Thompson, Inc. Finish Thompson, started in 1951 in Erie, Pennsylvania, is a USA leading designer and manufacturer of chemical transfer pumps sold around the world to a variety of industries. FTI AIR expands the reach of the company’s expertise from centrifugal and barrel pumps to the markets of the versatile, portable air-operated double-diaphragm pumps.