MFRI, Inc. engages in the manufacture and sale of industrial filtration products, specialty piping systems, and industrial process cooling equipment. The company operates three businesses: Midwesco Filter Resources, Inc.; Perma-Pipe, Inc.; and Thermal Care, Inc. Midwesco Filter Resources, Inc. engages in the manufacture and sale of filter elements for air filtration and particulate collection systems that are used in industries in the United States and internationally to limit particulate emissions to comply with environmental regulations. It markets its air filtration-related products and accessories, and provides maintenance services, consisting primarily of dust collector inspection,...