Industrial Blowers, Vacuum Pumps, Air Knives, Filters, and Custom Metal Fabrication Republic Sales & Manufacturing Co. provides product design, layout, fabrication, installation, and plant maintenance. In addition to sheet metal fabrication, Republic has diversified to become a distributor of industrial equipment including such lines as: Republic Blower Systems (Regenerative and Centrifugal) Republic Air Knife Systems Republic PD Blower Packages Elmo-Rietschle Blowers and Vacuum Pumps Dresser Roods PD Blowers MANN-FILTER