7 Skid Mounted Air Moving Equipment Consisting of Air Compressors, Oil Free Compressors, Positive Displacement Blowers and Vacuum Pumps
11 Subsurface, Static-Type Aeration Systems Comprised of Aerators, Aeration Piping and Tubes, Support Bases, Diffuser Membranes and Blowers for Use Primarily in Sewage Treatment and Industrial Waste Treatment